So this happened yesterday. I was playing GoW for around 20 minutes, and then the game just froze. No sound, and a frozen picture. So I decide to open up task manager and end the process. Following this, I re-open the game, play another ~20 minutes, and then the same nonresponsive screen shows...
64-bit
ati 4850
blue screen
bsod
catalyst drivers
computer specs
driver issue
driver recovery
e8400
error details
game compatibility
game freeze
gears of war
gigabytep45
minidump
psu
system restart
task manager
unexpected shutdown
windows 7