Looking to purchase the software only if you can get it to work.

I currently have 3 PC's all freshly installed for the first time with multiplicity 3.57 - whenever I'm playing everquest my primary computer duplicates mouse clicks, mouse scrolls, and mouse movements while im holding down a mouse button on a secondary screen. My primary computer constantly changes its targets while I click a hotkey on my secondary screen or swap out a spell with mouse clicks. Both secondary computers do this to the primary. If this cant be fixed I wont be buying this. I'll just have to battle the free mouse without borders some more even though its got its own issues. free problems < paid 4 problems lol