I had a problem similar to that with a Logitech optical mouse and fixed it by taking a Qtip with a little alcohol and cleaning out the sensors.
That happened twice on that mouse so I picked up a Microsoft Laser mouse and have not had any problems since.
Hi, I am having a wierd problem with my mouse. For some reason it is not correctly aligned with my screen. For instance, when I go to the right side of my screen it doesn't go to the edge of the screen, and when I go to the left side of my screen it goes off the monitor. Also I have to go to the left of the button I want to click. However it doesn't do it all the time, as I am typing this it just stopped doing this. I am running Vista service pack 1, however I believe it was doing this before I upgraded to sp1. It is a wireless mouse. Any input appreciated.