@Mastrius0713, just so you don't feel like the Lone Ranger, I have exactly the same problem. Update Manager starts, says there are updates available but when I click on the button to start the updates I get the Admininistrative Application box on the bottom bar and nothing. I, too, cannot close Update manager, nor does it respond to anything except a process kill. Synaptic Package Manager acts the same way. The Administrative Application program simply doesn't run to present the password box. To make sure I wasn't moving too fast, I let it run, thinking that perhaps it had something it needed to do before I got the prompt. I let it run 24 hours and I still had the spinner on Update Manager. I'm reinstalling Heron now, but if this doesn't work I'm going back to 7.04.