I keep getting a black screen for a couple of seconds with this 4870 on Vista 64-Bit, then when it recovers i get the old "Display driver stopped responding" message.
This mostly happens with games, but it's even happened on the desktop when idle.
Temps are fine, around 60c. I've tried using 8.7 BETA and 8.7 Final drivers, Tried just installing the Display driver, no CCC. Didn't help. Even done a new Vista install, with nothing else installed but the updates, SP1, and latest DirectX version, but it still happened.
Also tried underclocking the card and using a diff card BIOS. Still didn't help.
Also used a MultiMeter to measure voltage on the cards power connectors while a game was running, no problems there.
Other graphics cards are fine in the same system.
Does anyone else get these problems? it looks as if it's the drivers...