i am currently having the same problem, same OS + java exept no crashing for me just an instant shut down the
antivirus is ESET NOD32,
no error mesages
error Log is a bunch of coding, looks to be a java error log, not a tekkit one, not sure if you want all the coding, but this is only some i can post more if you want
#
# A fatal error has been detected by the Java Runtime Environment:
#
# EXCEPTION_ACCESS_VIOLATION (0xc0000005) at pc=0x54f72890, pid=6684, tid=4228
#
# JRE version: 6.0_31-b05
# Java VM: Java HotSpot Client VM (20.6-b01 mixed mode windows-x86 )
# Problematic frame:
# C [atioglxx.dll+0xe92890]
#
# 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.
#
--------------- S Y S T E M ---------------
OS: Windows 7 , 64 bit Build 7601 Service Pack 1
CPU:total 4 (4 cores per cpu, 1 threads per core) family 16 model 5 stepping 3, cmov, cx8, fxsr, mmx, sse, sse2, sse3, popcnt, mmxext, 3dnow, 3dnowext, lzcnt, sse4a
Memory: 4k page, physical 4193572k(1177560k free), swap 8385292k(3637124k free)
vm_info: Java HotSpot Client VM (20.6-b01) for windows-x86 JRE (1.6.0_31-b05), built on Feb 3 2012 18:44:09 by "java_re" with MS VC++ 7.1 (VS2003)
time: Sun Jul 01 21:21:50 2012
elapsed time: 101 seconds