I'm attempting to run the Dude in an Ubuntu 7.10 VM. With 2.2 it says "Error: connection closed". I tried 3.0 and was only marginally more successful: it said "Getting Stuff" (I got excited there!) but then asked if I wanted to "upgrade" to 2.2. First I said no, and it disconnected, then I said yes and it still disconnected.
If anyone else has similar experiences, please let me know.