I brought this up with support, and they said it was an issue of letting the "update" install into the same directory as your original 11.5 MP. Since that is the norm for most product updates I thought that would be what you do. But, I guess not.In...
For anybody who does what I did, and downloads the zip file containing all of the beans instead of just the ExpandArchive, you need to know that this will cause some problems (until Macrovision fixes the larger zip file). The ismp.registry file incl...