I'm having the same problem. Can you please explain how to resolve it? I had Fusion already installed. Then I had to reinstall Vista on Boot Camp. I went back to Fusion and it can't launch it. It suggested to remove Hard Disk and added but I don't think that worked.
How do you get to the OS panel as mentioned above?
I tried to uninstall Fusion, but I don't think it uninstalled it cleanly, because when I re-installed it, it remembers the key and the settings from before. Does anyone know how to cleanly uninstall Fusion?
Thanks!