I just installed build 3214 of Parallels on my iMac 20" core duo (1GB RAM/500GB HDD) OS 10.4.10. I have used Parallels for ages without any problems. I had an old build of Parallels and used appzapper to get rid of all traces of the old build. I then installed the new one, restarted, then when I launch it all options are greyed out. Any ideas? Thanks all.