I should also add that the IDLdemos seem to work fine, so I don’t think that it’s a problem with the basic IDL install per se.
The IDL VM 6.11 starts with no difficulty, and I then can browse to the appropriate .SAV location. The error appears when I try to open BioMap, so I’m never reaching the point where I can load an MSI file. Since I have no positive control to verify that the IDL VM is functional, I can’t guarantee that the problem doesn’t lie there; however, the actual error message occurs when I try to open BioMap. I’ve tried running this from the command line as well, and I see the message “pBMT_SetupStructures: Initializing structures…” prior to the error appearing.