Having the exact same issue with 1.9g. Hit F3 and search window comes up (Vista). I just upgraded to newest keyclone yesterday, and I did not have the issue before. I didn't look at the auto-add issue, I will check that when I get home.

Also, it does appear that I am losing focus on the window, as while I am casting spells a preview window will open up from one of my windows on the taskbar. I have to move my mouse down to the taskbar and click for it to go away. I'm pretty sure it happens when I hit a specific key, but I didn't get a chance last night to figure out which key it is. A minor inconvenience, but one I did not experience before this new version of Keyclone.