I use Multiplicy KVM to play EverQuest on multiple computers, and with the recent EQ upgrade to 64-bit servers, Multiplicity is "broken" now. Keyboard works fine, but if I use the mouse to move (right click) or look around (left click), it duplicates that action on all other connected computers. This was happening on the Test server several weeks ago, and is now happening on the Live server after today's patch/update. I'm not the only person having this issue.
Update: This is the build that will resolve the issue. It should be installed on all PCs that use Multiplicity:
You can review the thread history for context.
Stardock Support Manager