Ok what has happened now.

Before - Single Nvidia card - periodic freezing of active WOW clients - ie. if I'm running 4 dks in BG and the Paladin is standing stormwind - the Paladin doesn't freeze - until I switch and try to do something significant (like open the map!).

Now - Nvidia Card primary and ATI card secondary. The primary screen goes blank periodically, I can still control the character and the slaves are still moving.

The first time the screen went blank it came back after 40 seconds or so. The second time it didn't come back, after a couple of minutes I forced wow to quit, and when on the desktop the screen came back in about 20 seconds.


The Nvidia graphics card was sitting at 76 Celsius at this time... the ATI runs constant at 78 C.

Hmmmmmmmmmmmmmmmm any thoughts?