I installed Beta 3 over the top of Beta 2. Instead of the expected behavior that the insataller asks... 'beta 1 detected, would you like to remove it and install beta2' it just continued through to the last step. In the last step it says 'error in installing' but continues on.
So I completly removed all Radmin from my computer. I then started getting Blue Screens of Death and lost my windows taskbar (the startmenu and language bar are there but I can't see the running programs). I reinstalled Beta3 and now I'm no longer experiencing the blue screens of death but still have not Windows Task bar.