The only work around I know, is to hit the PRT SCR key twice to bring up the KVM menu of the KVM you are currently on.
Also, have you noticed if it happens while you are on the same KVM all the time, or does it switch back and forth?
Mine also has the following issue. I'll reboot a server and the KVM automatically switches to a different server, and it's always the same server it switches to. Rather it's the port, because I've unplugged this server from the KVM and it will still switch to it on a reboot.