I have a license for Parallels 2. I tried out the Parallels 3 trial on Leopard, and today when I went to use it it said the trial had expired. I dutifully went and purchased an upgrade, but when I go to open Parallels, it says it's expired and provides a "continue" button to click. But no matter what I do, though, the "activate product" link in the Help menu is greyed out and I can't enter my license key. I have tried uninstalling/reinstalling and it is still happening. This is Build 5160 on Leopard 10.5.1, if it matters. There is probably an obvious solution to this but I'm missing it. Help?