I upgraded to Ubuntu 10.04 from within 9.10. After restarting I get the log-in prompt, but I can't get it to accept any keyboard input, so I can't enter the password. I can click on the Log In button with the mouse, but with no password entered, that doesn't get me logged in. I'm running within a virtual machine (using VMware Workstation). I see someone on the Ubuntu forums had a similar problem: http://ubuntuforums.org/showthread.php?t=1468162. The suggestion was to do a clean install. Anybody have any ideas short of that?