Hello there zestwan

I hope you can help me out here.
I have somewhat the same specs as you

Win 7x64
ASUS Sabertooth X58
Core i7 920
8 Gb Ram
Radeon 5870

Did you ever face an issue with the graphics card saying that 'ATI Radeon Family has stopped responding and has been recovered' during startup and if you have fixed this, can you tell me the solution?

One more thing, can you tell me how to start an online coop play in guardian of light?

Sorry for the trouble