I had the same frustrating problem develop on my Microsoft mouse with
the left-click developing a random double click. I took the mouse apart
to look at the solders and cleaned out a little bit of dust that had
collected in the mouse around the front near the culprit microswitch. I
then put it together and it now works perfectly. There must have been
some dust specs causing some sort of short in the device.

Anyway, saves me $30+ for the time being.


--
nash