The Dataset name displayed on the Main Menu does not match the name of the dataset I am running.
I've heard of this display error before in MYM with the dataset showing a different
name than the one that is actually loaded. It's just a display error which I
think can be fixed by just loading in a different dataset and switching back
again. You could also try running MYM directly from the DOS prompt and loading
a specific dataset by typing "MYM [dataset name]" - no brackets. Try
directly loading a different dataset, exiting and then directly loading the
current dataset again. Once you get it "right", it should stay that