I have just installed Vista Home Premium on my laptop. This laptop previous had Vista on it but I have re-installed it. The first installation ran fine but this time whenever I move the mouse around it gets stuck occassionally for a second. It is very annoying. It is not the mouse itself as it works fine on another PC. Also the mouse is nice and smooth on the login screen, it is only once I login that it starts to "stutter". Any ideas how to solve this?