i can say that's weird. did you do any driver update before this or is this happen since the begining you got your card? we just hope it is not something similar to this problem that happening to sapphire 7870
I don't think I've done any recent updates thats made it do it, I haven't noticed the mouse on the black screen before, so I'm guessing it's just started happening randomly.
Also another thing has started happening, When I open up a game or even a link to a website the screen goes black and I have to wiggle the mouse to bring the screen back ?
Edit: Actually I do remember doing some updates on the CCC a little while ago. I'm installing some optional update at the moment and the screen keeps going black alot more and I have to keep wiggling the mouse.