i would stay as far away from any Sapphire card as i could get, especially the 9000 series...... check this link..
Sapphire support forum..... be warned, it's a 16 page thread. i have this problem myself with a Sapphire Atlantis 9700pro Ultimate..... seems to be affecting all Sapphire 9000 series cards though. and Sapphire has virtualy non-existant tech support, or at least they are dodging this problem. you can find a lot of info about this on Rage3D forums too.