Optical Mice I had several optical mice throughout the years. After a little over a year, the left-clicker always get shoddy. It makes the clicking sound, but it doesn't register. I have to click really hard for it to count, and as a result, that sometimes registers as a double-click and it's really annoying. I believe this is a mechanical problem with the mouse. Any way to fix this without getting a new mouse? Anyone else have this problem?