Knowing the operator as intimately as I do, he's my first suspect.

I'm working in BIAB and trying to drag an mp3 into the "Drop
Zone". As I recall, there should be some indication that the mp3 was actually loaded into BIAB. I see no such indication.

Yes, I read the manual to no avail.

If anyone is familiar with the "Drop Zone" please jump in and edify me right in front of everybody.

I'm sure that the solution is something very simple but I'm feeling very stupid.