Right click (ctrl-click or ctrl-shift-click, I've also tried several key combinations) stopped working on the Windows XP instance. It's been working fine for the last year, but yesterday it stopped and I have no clue why. Nothing new was installed or changed. Ctrl-click works on the mac side, so I know it's not anything like a bad key on the keyboard... Any assistance would be appreciated.
nenl, Could you please tell us, what settings do you have in Parallels Desktop -> Keyboard & Mouse -> Mouse tab? It can be caused by delay setting, both in Parallels Desktop, as well as on the guest OS side, you should check both.