How to suspend VM to install new version

I upgraded my MacBook to Snow Leopard OSX 10.6.2 only to discover that my good old Parallels 3 will not work any more. So I go to install Parallels Desktop 4 but it gets to the step that detects that a virtual machine is still running or suspended (it lists Microsoft Windows XP 1 twice), requiring that I shut these down. So, how do I shut them down? I can't start Parallels anymore and there is no "undo" to the OS upgrade? I din't care about lost data in open Windows apps so a force shut down is fine, but how do I do it.

Thanks, Alex

 

Hi Alex,
please try to apply KB http://kb.parallels.com/en/6659