When I attempt to launch the snapshot manager ("Run Snapshot Manager") from any of my Parallels images it locks up my Parallels (no pinwheeling, but you can't do anything else and all of the menu options grey out). When I load the Process List, the program is not "Not Responding", it is just unusable anymore since everything is disabled. The only way to get out is to "Force Quit". I let it sit for about 10 minutes, but maybe I will let it sit longer and see what happens - but any idea what would cause this or how to fix it?