Installed RC1 successfully as a hybrid, but during the installation I chose UI2 with masking (which shouldt work). There must be some kind of problem with this because the orbiter (on-screen) never show up. Just some flashes of OpenGL frame and then nothing.
I therefore wanted to try UI1, but cannot find a way to switch! In beta2 there used to a field in the Launch Manager or in Web admin, but they are gone. I feel very stupid, must have overlooked something.