Alright, so I had a total wipe-fest last night in BFD. I 1 shot every boss, but randomly KC would stop working on me in the middle of fights - suddenly losing control of my alts was really quite deadly. Especially when I was moving them when it happened - because then they would just autorun into a couple extra groups.

Symptoms wise, it seems like the Client KC is loosing connection to the Server KC. When I look at the two of them, the Client will show the Main as well as all the alts - but when I look at the Main KC it will only show the WoW that is on that machine.

My Main machine is XP, the Client Machine is Vista. Both are 64 bit.
I run Multibox for just the mouse control.

I disabled my firewall on both machines - same issue.
I made sure that KC was running as an Admin on the Vista machine, same issue.

I have tried, out of combat, pounding all the keys on the keyboard - and it does not seem to cause the problem. Right now, it just seems random.

Anyone else having this issue? Any work arounds? Is it possible I am hitting a key-combo that is messing this up? I don't mind wiping... I just want it to be my fault...