Weird static screen on windows startup

Hi,

I recently bought the new 5970, and very occassionally i'll get strange static displayed on the monitor when windows starts up.

I'm just trying to figure out what the most likely source of this is? Whether its a driver problem that may sort itself out in due time, or whether some kind of hardware problem? i would of course try different combinations of hardware, but its a occassional enough issue to be difficult to test this way.

At first i thought it was the graphics card as i don't remember this happening before i bought it. And it seemed to me most likely a driver issue as it only ever happens on windows startup (and is fine in safe mode and pre windows loading)?

But then if i turn the monitor off and on during this static, then once the monitor has reinitialised the static will have gone and the monitor will display my loaded desktop. That suggests to me the monitor might have something to do with it.

Any ideas would be gratefully recieved.

Thanks