Shaky Mouse in right menu upon opening files

Any mouse experts out there?

My MS optical wheel mouse has developed the shakes when I go to open a file and scan the right click menu commands...it sort of stutters, shakes and stalls momentarily.

But when I open anything else it works fine.

No other anomalies.

I have not been successful in finding any related articles on the net.

Edit: update

Downloaded and installed a new updated driver and problem appears to be resolved.