I had to reinstall Windows recently (x64, 7, Pro -> Ultimate upgrade) and I'm having a problem I didn't have before.
When the mouse cursor changes, for example from an arrow to the I-bar, there is a period of lag. It's not much - maybe 200ms? - but it's severely irritating, particularly because I know it shouldn't happen.
I have three monitors; two run on a Radeon HD 6670, and one runs on the onboard Intel HD 3000 graphics. On the "Intel" monitor, this problem doesn't occur, but on the other two it does. I tried about 4 different older Catalyst versions from around the time I built this computer, and the best luck I've had so far is with the 11-1 drivers. It seems to be okay most of the time and then randomly happen in some windows and applications. At least it doesn't happen in the browser now.
Mouse is a Logitech Performance MX, but the presence or absence of SetPoint hasn't affected the problem.
Has anyone encountered this problem before? Any suggestions on what to do about it? I found one Google result where someone had the same problem, but it was with Intel drivers and a rollback fixed it for them. They linked a specific version of the driver and I installed it, but it did not affect the problem on the Radeon monitors.