I'm boggled by what's going wrong and I can't seem to figure out the problem.

I'm running two machines with Vista, and out of nowhere, suddenly, I have a problem with one of the computers and Keyclone. It first starts with Keyclone loading and two instances of World of Warcraft appearing in the list of running programs, even though only one instance is loaded. This makes all sorts of annoying issues, from the keypresses of the other machine being duplicated multiple times (if I hit 1 to press a spell, it will press that spell on the other machine, then immediately try to press it a second time) to the override command being ignored on the second machine. Also one of the keys I pass is the spacebar to jump, and when I jump on the normal machine, the second machine minimizes WoW entirely.

I haven't done anything to either computer as far as I can remember nor have I changed anything to do with WoW or Keyclone since updating it to 1.9 on the first. Everything worked fine up until a day or two ago when this hit me out of nowhere. I can't figure out what's wrong or how to not add the second instance and this has made everything totally unplayable.

Any ideas?