Parallels files corrupted? A quick fix (maybe).

Today I copied a parallels image (Windows Server 2008) from my imac to my macbook. For some reason, I got the following error message when I tried to start it up: The virtual machine cannot be used because its files are corrupted. A bad file copy on the network? It turns out no. This message could certainly mean  you have bad files, but consider one option. It asks you to remove it. Say yes. It won't delete the PVM file. Instead it sort of de-registers it from Parallels on the machine. Then just open the PVM file again (double click in finder) and it'll re-add it and you MAY find that your machine is OK. I did. What a relief! Hopefully yours will too.