can you post the minidump ?
also - sometimes bad ram is the cause, so test it with memtest86+ from
www.memtest.orgmore helpful info :
http://www.hardwareanalysis.com/content/topic/37716/you can also try this :
- boot up in safe mode - use F8 key
- delete folder "WER1.tmp.dir00" of all the users on the pc
- delete all in c:\windows\minidump\
- do a disk scan for errors - it may say it requires a reboot
- then reboot, let it scan
and reboot to test