I'm having a peculiar screen sharing problem. At home I have a mac mini as a media centre connected to the TV, and if I want to fiddle with it, I usually connect to it via screen sharing on my main computer, a new-ish 27" iMac. Recently (last couple of months, no more), the iMac (running 10.6.7) won't connect. It hangs on the "Connecting to [name of mini]" window, which eventually goes away, and the screen sharing app is running in the dock, but no actual screen appears. Previous posts on here have suggested quiting the NetAuthAgent and AppleVNCServer, but neither of these helps for me. What is odd is if I get my old MacBook out (I never upgraded it from 10.5.8), it will run screen share without a problem (the iMac will also not connect to the MacBook to screen share either, but the MacBook will connect to the iMac). Anybody have any thoughts?