Yeah that could be it, though that sounds more like a possible sharing conflict than what I believe mine was doing. I presume my machine was attempting to open the midi palette or something and that was the file that either didn't exist or was placed improperly, throwing the exist error back to DBC. But then, that's just a guess. I actually had to install, re-install and re-install my sound driver and DX about a dozen times to get the problem to go away, at one point even giving up and I concluding I couldn't use music at all anymore. Two months later, and yet another attempt, and I solved it somehow...
Another maddening condition where nothing is wrong but nothing works.

S.
Any truly great code should be indisguishable from magic.