Llevo dias intentando jugar, el caso es que ni siquiera me deja jugar offline, creo que es cosa de la maquina de java, pero como yo no tengo ni idea de java, probe con google, preguntando a unos amigos, y no encontre nada...

copio el fichero que genera al cerrarse solo:
#

A fatal error has been detected by the Java Runtime Environment:

EXCEPTION_ACCESS_VIOLATION (0xc0000005) at pc=0x63ec963a, pid=2856, tid=4672

JRE version: 6.0_22-b04

Java VM: Java HotSpot(TM) Client VM (17.1-b03 mixed mode windows-x86 )

Problematic frame:

C [aticfx32.dll+0x3963a]

If you would like to submit a bug report, please visit:

http://java.sun.com/webapps/bugreport/crash.jsp

The crash happened outside the Java Virtual Machine in native code.

See problematic frame for where to report the bug.

--------------- T H R E A D ---------------

Current thread (0x480bf400): JavaThread "Minecraft main thread" daemon [_thread_in_native, id=4672, stack(0x4a160000,0x4a1b0000)]

siginfo: ExceptionCode=0xc0000005, reading address 0x00000000

Registers:
EAX=0x00000000, EBX=0x00000000, ECX=0x4a1aea60, EDX=0x4a1aea50
ESP=0x4a1aea20, EBP=0x4a1aea40, ESI=0x4a1aeadc, EDI=0xc0000001
EIP=0x63ec963a, EFLAGS=0x00010216

Top of Stack: (sp=0x4a1aea20)
0x4a1aea20: 49ea27e8 002bf9c0 49ea07ec 4a1aea3c
0x4a1aea30: 00000000 00000000 4a092850 4a1aea54
0x4a1aea40: 4a1aea70 63eb923b 00000000 4a1aea50
0x4a1aea50: 4a1aeca8 00000260 00000000 4a1aea60
0x4a1aea60: 00000001 00000000 4a1aeca8 00000260
0x4a1aea70: 4a1aea80 63eb6812 00000000 00000960
0x4a1aea80: 4a1aeaa8 749142c3 00000001 440117f3
0x4a1aea90: 4a1aeadc 00000000 40001980 00000000

Instructions: (pc=0x63ec963a)
0x63ec962a: cc cc cc cc cc cc 55 8b ec 83 ec 1c 53 8b 5d 08
0x63ec963a: 8b 03 8b 50 04 56 8b 75 0c 57 56 8b cb ff d2 89

Stack: [0x4a160000,0x4a1b0000], sp=0x4a1aea20, free space=13a4a1ae53ck
Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code)
C [aticfx32.dll+0x3963a]
C [aticfx32.dll+0x2923b]
C [aticfx32.dll+0x26812]
C [atigktxx.dll+0x42c3]
C [atigktxx.dll+0x217f]
C [atioglxx.dll+0x49fbb]
C [atioglxx.dll+0x18fa8]
C [OPENGL32.dll+0x3b0f3]
C [OPENGL32.dll+0x3b1a9]
C [OPENGL32.dll+0x3c6a4]
C [OPENGL32.dll+0x45658]
C [OPENGL32.dll+0x45dd4]
C [OPENGL32.dll+0x46559]
C [GDI32.dll+0x36805]

Java frames: (J=compiled Java code, j=interpreted, Vv=VM code)
j org.lwjgl.opengl.WindowsPeerInfo.nChoosePixelFormat(JIILorg/lwjgl/opengl/PixelFormat;Ljava/nio/IntBuffer;ZZZZ)I+0
j org.lwjgl.opengl.WindowsPeerInfo.choosePixelFormat(JIILorg/lwjgl/opengl/PixelFormat;Ljava/nio/IntBuffer;ZZZZ)I+15
j org.lwjgl.opengl.WindowsDisplay.createWindow(Lorg/lwjgl/opengl/DisplayMode;Ljava/awt/Canvas;II)V+176
j org.lwjgl.opengl.Display.createWindow()V+68
j org.lwjgl.opengl.Display.create(Lorg/lwjgl/opengl/PixelFormat;Lorg/lwjgl/opengl/Drawable;Lorg/lwjgl/opengl/ContextAttribs😉V+63
j org.lwjgl.opengl.Display.create(Lorg/lwjgl/opengl/PixelFormat😉V+9
j org.lwjgl.opengl.Display.create()V+13
j net.minecraft.client.Minecraft.a()V+135
j net.minecraft.client.Minecraft.run()V+6
j java.lang.Thread.run()V+11
v _StubRoutines::call_stub

--------------- P R O C E S S ---------------

Java Threads: ( => current thread )
=>0x480bf400 JavaThread "Minecraft main thread" daemon [thread_in_native, id=4672, stack(0x4a160000,0x4a1b0000)]
0x01a6a800 JavaThread "Timer hack thread" daemon [thread_blocked, id=1936, stack(0x4a010000,0x4a060000)]
0x019a1c00 JavaThread "DestroyJavaVM" [thread_blocked, id=5120, stack(0x00260000,0x002b0000)]
0x481f1800 JavaThread "D3D Screen Updater" daemon [thread_blocked, id=2180, stack(0x489a0000,0x489f0000)]
0x4817ec00 JavaThread "AWT-EventQueue-0" [thread_blocked, id=3208, stack(0x48740000,0x48790000)]
0x4817c000 JavaThread "AWT-Shutdown" [thread_blocked, id=4624, stack(0x484e0000,0x48530000)]
0x480cf000 JavaThread "AWT-Windows" daemon [thread_in_native, id=364, stack(0x48530000,0x48580000)]
0x480ce400 JavaThread "Java2D Disposer" daemon [thread_blocked, id=6044, stack(0x48260000,0x482b0000)]
0x01a58c00 JavaThread "Low Memory Detector" daemon [thread_blocked, id=3504, stack(0x47fc0000,0x48010000)]
0x01a54800 JavaThread "CompilerThread0" daemon [thread_blocked, id=5844, stack(0x47f70000,0x47fc0000)]
0x01a49c00 JavaThread "Attach Listener" daemon [thread_blocked, id=5256, stack(0x47f20000,0x47f70000)]
0x01a46c00 JavaThread "Signal Dispatcher" daemon [thread_blocked, id=660, stack(0x47ed0000,0x47f20000)]
0x01a1d000 JavaThread "Finalizer" daemon [thread_blocked, id=3040, stack(0x47e80000,0x47ed0000)]
0x01a18400 JavaThread "Reference Handler" daemon [thread_blocked, id=4856, stack(0x01a90000,0x01ae0000)]

Other Threads:
0x01a15400 VMThread [stack: 0x011c0000,0x01210000] [id=2308]
0x01a5bc00 WatcherThread [stack: 0x48010000,0x48060000] [id=2020]

VM state:not at safepoint (normal execution)

VM Mutex/Monitor currently owned by a thread: None

Heap
def new generation total 157248K, used 55920K [0x03af0000, 0x0e590000, 0x19040000)
eden space 139776K, 40% used [0x03af0000, 0x0718c118, 0x0c370000)
from space 17472K, 0% used [0x0c370000, 0x0c370000, 0x0d480000)
to space 17472K, 0% used [0x0d480000, 0x0d480000, 0x0e590000)
tenured generation total 349568K, used 0K [0x19040000, 0x2e5a0000, 0x43af0000)
the space 349568K, 0% used [0x19040000, 0x19040000, 0x19040200, 0x2e5a0000)
compacting perm gen total 12288K, used 8556K [0x43af0000, 0x446f0000, 0x47af0000)
the space 12288K, 69% used [0x43af0000, 0x4434b2d0, 0x4434b400, 0x446f0000)
No shared spaces configured.

Dynamic libraries:
0x00400000 - 0x00424000 C:\Program Files\Java\jre6\bin\javaw.exe
0x77880000 - 0x779bc000 C:\Windows\SYSTEM32\ntdll.dll
0x77450000 - 0x77524000 C:\Windows\system32\kernel32.dll
0x75c50000 - 0x75c9a000 C:\Windows\system32\KERNELBASE.dll
0x76ce0000 - 0x76d80000 C:\Windows\system32\ADVAPI32.dll
0x76a70000 - 0x76b1c000 C:\Windows\system32\msvcrt.dll
0x77430000 - 0x77449000 C:\Windows\SYSTEM32\sechost.dll
0x76ee0000 - 0x76f81000 C:\Windows\system32\RPCRT4.dll
0x76c00000 - 0x76cc9000 C:\Windows\system32\USER32.dll
0x76f90000 - 0x76fde000 C:\Windows\system32\GDI32.dll
0x76cd0000 - 0x76cda000 C:\Windows\system32\LPK.dll
0x76b50000 - 0x76bed000 C:\Windows\system32\USP10.dll
0x76ec0000 - 0x76edf000 C:\Windows\system32\IMM32.DLL
0x77610000 - 0x776dc000 C:\Windows\system32\MSCTF.dll
0x7c340000 - 0x7c396000 C:\Program Files\Java\jre6\bin\msvcr71.dll
0x6d7f0000 - 0x6da97000 C:\Program Files\Java\jre6\bin\client\jvm.dll
0x73de0000 - 0x73e12000 C:\Windows\system32\WINMM.dll
0x75900000 - 0x7594b000 C:\Windows\system32\apphelp.dll
0x6d7a0000 - 0x6d7ac000 C:\Program Files\Java\jre6\bin\verify.dll
0x6d320000 - 0x6d33f000 C:\Program Files\Java\jre6\bin\java.dll
0x6d280000 - 0x6d288000 C:\Program Files\Java\jre6\bin\hpi.dll
0x77a10000 - 0x77a15000 C:\Windows\system32\PSAPI.DLL
0x6d7e0000 - 0x6d7ef000 C:\Program Files\Java\jre6\bin\zip.dll
0x6d000000 - 0x6d14a000 C:\Program Files\Java\jre6\bin\awt.dll
0x70a50000 - 0x70aa1000 C:\Windows\system32\WINSPOOL.DRV
0x76fe0000 - 0x7713c000 C:\Windows\system32\ole32.dll
0x74920000 - 0x74abe000 C:\Windows\WinSxS\x86_microsoft.windows.common-controls_6595b64144ccf1df_6.0.7600.16661_none_420fe3fa2b8113bd\COMCTL32.dll
0x77340000 - 0x77397000 C:\Windows\system32\SHLWAPI.dll
0x74470000 - 0x74483000 C:\Windows\system32\DWMAPI.DLL
0x747a0000 - 0x747e0000 C:\Windows\system32\uxtheme.dll
0x6d230000 - 0x6d27f000 C:\Program Files\Java\jre6\bin\fontmanager.dll
0x75950000 - 0x7595c000 C:\Windows\system32\CRYPTBASE.dll
0x684a0000 - 0x68663000 C:\Windows\system32\d3d9.dll
0x74e90000 - 0x74e99000 C:\Windows\system32\VERSION.dll
0x687e0000 - 0x687e6000 C:\Windows\system32\d3d8thk.dll
0x70540000 - 0x70945000 C:\Windows\system32\atiumdag.dll
0x6fb50000 - 0x6fff4000 C:\Windows\system32\atiumdva.dll
0x75440000 - 0x75456000 C:\Windows\system32\CRYPTSP.dll
0x75170000 - 0x751ab000 C:\Windows\system32\rsaenh.dll
0x75030000 - 0x75047000 C:\Windows\system32\USERENV.dll
0x759d0000 - 0x759db000 C:\Windows\system32\profapi.dll
0x6d600000 - 0x6d613000 C:\Program Files\Java\jre6\bin\net.dll
0x779d0000 - 0x77a05000 C:\Windows\system32\WS2_32.dll
0x779c0000 - 0x779c6000 C:\Windows\system32\NSI.dll
0x75400000 - 0x7543c000 C:\Windows\system32\mswsock.dll
0x75610000 - 0x75616000 C:\Windows\System32\wship6.dll
0x73cd0000 - 0x73ce0000 C:\Windows\system32\NLAapi.dll
0x752d0000 - 0x75314000 C:\Windows\system32\DNSAPI.dll
0x71660000 - 0x71668000 C:\Windows\System32\winrnr.dll
0x71650000 - 0x71660000 C:\Windows\system32\napinsp.dll
0x71630000 - 0x71642000 C:\Windows\system32\pnrpnsp.dll
0x74f60000 - 0x74f65000 C:\Windows\System32\wshtcpip.dll
0x73ab0000 - 0x73acc000 C:\Windows\system32\IPHLPAPI.DLL
0x73aa0000 - 0x73aa7000 C:\Windows\system32\WINNSI.DLL
0x71550000 - 0x71556000 C:\Windows\system32\rasadhlp.dll
0x72000000 - 0x72038000 C:\Windows\System32\fwpuclnt.dll
0x6d620000 - 0x6d629000 C:\Program Files\Java\jre6\bin\nio.dll
0x773a0000 - 0x77423000 C:\Windows\system32\CLBCatQ.DLL
0x77a20000 - 0x77aaf000 C:\Windows\system32\OLEAUT32.dll
0x4a110000 - 0x4a14f000 C:\Users\Luisjo\AppData\Roaming.minecraft\bin\natives\lwjgl.dll
0x63f20000 - 0x63fe8000 C:\Windows\system32\OPENGL32.dll
0x65a70000 - 0x65a92000 C:\Windows\system32\GLU32.dll
0x64d50000 - 0x64e37000 C:\Windows\system32\DDRAW.dll
0x67a40000 - 0x67a46000 C:\Windows\system32\DCIMAN32.dll
0x776e0000 - 0x7787d000 C:\Windows\system32\SETUPAPI.dll
0x75a70000 - 0x75a97000 C:\Windows\system32\CFGMGR32.dll
0x75a50000 - 0x75a62000 C:\Windows\system32\DEVOBJ.dll
0x6d350000 - 0x6d356000 C:\Program Files\Java\jre6\bin\jawt.dll
0x69030000 - 0x69ffc000 C:\Windows\system32\atioglxx.dll
0x74910000 - 0x7491a000 C:\Windows\system32\atigktxx.dll
0x63e90000 - 0x63f1a000 C:\Windows\system32\aticfx32.dll

VM Arguments:
jvm_args: -Xms512m -Xmx1024m
java_command: C:\Users\Luisjo\Desktop\Minecraft.exe
Launcher Type: SUN_STANDARD

Environment Variables:
PATH=C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem;C:\Windows\System32\WindowsPowerShell\v1.0\;C:\Program Files\ATI Technologies\ATI.ACE\Core-Static;C:\Program Files\Java\jre6\bin
USERNAME=Luisjo
OS=Windows_NT
PROCESSOR_IDENTIFIER=x86 Family 15 Model 4 Stepping 4, GenuineIntel

--------------- S Y S T E M ---------------

OS: Windows 7 Build 7600

CPU:total 2 (2 cores per cpu, 1 threads per core) family 15 model 4 stepping 4, cmov, cx8, fxsr, mmx, sse, sse2, sse3

Memory: 4k page, physical 2096696k(999328k free), swap 4193392k(2007320k free)

vm_info: Java HotSpot(TM) Client VM (17.1-b03) for windows-x86 JRE (1.6.0_22-b04), built on Sep 15 2010 00:56:36 by "java_re" with MS VC++ 7.1 (VS2003)

time: Tue Jan 18 17:02:17 2011
elapsed time: 316 seconds

¿Alguna idea del problema o como solucionarlo?
Pd: espero no pasarme preguntando por esto aqui, no conozco mucho el sitio...