Hi, I have a system with a 5870 and a 5830 dual boot with Xp64 and 7-64. On both I have installed SDK from catalyst 11.6 and the driver from catalyst 12.1.
Xp64 mines stable for weeks, while when I try to mine on 7 (with phoenix 1.72), I get a BSOD in a couple of minutes, referring to atikmpag.sys. 7 is a fresh install. I tried to uninstall and reinstall the drivers and even to format and reinstall 7 but the result remains the same.
Welcome to the shitty and unstable AMD drivers! Enjoy your stay.