Try this:

Locate a file named, "intrface.bbw" - This file contains most of the global Band-in-a-Box settings in the Opt. | Preferences dialogs, and a list of the most recently accessed song and style files.

Delete only that file. (If you want to be really safe, make a copy of it on a usb stick or your main hard drive first, then delete it from the BB folder.)
Now try starting BB normally, if that is the problem, it will rebuild that critical file, which I think is likely corrupted at this point.


--Mac