Avid Artist Mix Stops Left Button On Mouse

I recently went back to Windows 7 64 bit after having too many issues with Pro Tools 10.3.9 in Windows 8.1. Well now Pro Tools 10 works but after installing the Eucontrol 3.2.1 (right when the icon goes from grey to white) my left button on my mouse stops working. :mad::mad::mad::mad: I have to use the keyboard to uninstall the Eucontrol and immediately my mouse began's to work. I find this very WIERD!!! Can any one help with this PLEASE!!!!