fuzzy screen

I just installed opensuse 11 on my gateway tseries laptop, and the screen gets fuzzy or very thin horizontal lines go through the words and makes it hard to read, but it clears up in secs. I was wondering if any of you ran in to this problem. Would if have to do with my ati video card for the laptop. Thanks!

VGA compatible controller: ATI Technologies INC RS690M [Radeon X1200 series]