I had the same problem of my interface not sticking. It only did that after I installed the 4.03 update. Let's see if I can remember this. I ended up having to uninstall the update, reinstall the original Poser 4, then saving the old poser.rsr file. When I installed the 4.03 update, I replaced the poser.rsr file with the old one. This fixed it. There's a glitch in the 4.03 update. You don't have to use the UI dots. That's a pain every time you open Poser. Just delete the 4.03 rsr file in the Poser directory and replace it with the old 4.01 (or whatever) version. This is the advice I got from the forum members here and it worked for me. Melanie