are you working with an extract? If so, have you tried refreshing it in 10.1?
It will let me describe sheet now, but I'm still having my weird calculated field issues.
Try saving and reopening your file, perhaps that also helps? If not, and the fields still work, is this really a problem or more of a cosmetic issue?
It doesn't seem to be creating issues that I can tell so I'm going to consider it a non-issue. Initially, I just wasn't sure if the two things had anything to do with one another.
Thanks for the help!