My video card driver acted a little wierd while playing minecraft

Hi guys I was playing on my minecraft as normal then its started lagin then stoped with an out of memory then when to start it again it appears that i got an error and it asks me if i want to report it i checked and other raported t but i couldnt find the solution so i guees i will ask here so what caused this problem so here we go :


# A fatal error has been detected by the Java Runtime Environment:
#
# EXCEPTION_ACCESS_VIOLATION (0xc0000005) at pc=0x0000000077c80895, pid=2648, tid=1188
#
# JRE version: 6.0_30-b12
# Java VM: Java HotSpot(TM) 64-Bit Server VM (20.5-b03 mixed mode windows-amd64 compressed oops)
# Problematic frame:
# C [ntdll.dll+0x50895]
#
# If you would like to submit a bug report, please visit:
# HotSpot Virtual Machine Error Reporting Page
#
......(lines that idk if they use at anything)........


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

Environment Variables:
PATH=C:\Program Files (x86)\AMD APP\bin\x86_64;C:\Program Files (x86)\AMD APP\bin\x86;C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem;C:\Windows\System32\WindowsPowerShell\v1.0\;C:\Program Files (x86)\ATI Technologies\ATI.ACE\Core-Static;C:\Program Files\Java\jre6\bin
USERNAME=tata
OS=Windows_NT
PROCESSOR_IDENTIFIER=Intel64 Family 6 Model 23 Stepping 10, GenuineIntel



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

OS: Windows 7 , 64 bit Build 7600

CPU:total 2 (2 cores per cpu, 1 threads per core) family 6 model 23 stepping 10, cmov, cx8, fxsr, mmx, sse, sse2, sse3, ssse3, sse4.1

Memory: 4k page, physical 4192760k(2986728k free), swap 8383668k(6384200k free)

vm_info: Java HotSpot(TM) 64-Bit Server VM (20.5-b03) for windows-amd64 JRE (1.6.0_30-b12), built on Nov 10 2011 01:49:46 by "java_re" with MS VC++ 8.0 (VS2005)

time: Thu Jun 14 17:41:17 2012
elapsed time: 3 seconds

i curently have :RAM:4GB
:GFX:NVIDIA geforce GTX 260
rocessor:2,93 GHz dual
windows:windows 7 (64-bit)

pls help me

Start by uninstalling all the Java stuff in Control Panel...Programs...Uninstall a program.
Then install a fresh copy of Java from here: Download Free Java Software

If that doesn't fix it, post back and we'll try other things.