Anyone else's Mouse double clicking instead of single after upgrading to Mountain Lion?

Hey guys,

I upgraded to Mountain Lion on the first day and immediately i noticed an issue with my mouse.

When I single click my mouse it frequently double clicks and is ****ing frustrating!! I use my mouse for work as a graphic designer and im a very fast worker - with this issue my productivity has nearly dropped a third.

I use a Logitech Performance MX mouse, but have also tried it on my standard (new / was unopened) Apple mouse that came with my iMac.

I have also tried altering the double click speed in the system preferences but the issue keeps repeating.

if ANYONE can help me i would very grateful as if this continues i could potentially lose my job.