@DLare Dean: That is one of the issues that Sienci addressed in .7.2. Could you try it and report back?
Just a few quick questions, if you don’t mind. Are you using a wireless or wired mouse? If wired, is it plugged into the PC or into a hub? If a hub, is it powered?
These questions are not meant to be critical of your set up. If .7.2 does not solve your problem, I’m simply trying to see if any hardware configurations could be contributing to the problem.