Scaniris,

Here are some things to check.. I had a problem also with locking up. but Fixxed it

1. Only use the Nov11.exe Drivers
2. Make sure you are not Using Everest to monitor voltage or anything it will cause lockups.
3. If you did instlal aanother driver. boot in safe mode and run Driversweeper and only use the Nov11 driver


Does you card cause the screen to flicker on multimonitor setup ? If so you need the Bios update for 5970.. I have it .. and can send it to you