Yep, the screen appeared, but each time I hit a key to do something I have to move the window around again for the view to update.
YES. THIS IS THE CASE FOR ME TOO. I'm now running Windows 7 and no matter WHAT I TRY I get this problem, rendering ZC virtually and permanently unusable for me. (Talking 2.5 here, haven't tried 2.10 but I really REALLY don't want to be forever stuck with an obsolete version.)

Anyone have any headway on this issue? Until it's resolved, I cannot move forward, and my friends are depending on me here.