Never come across this problem, and I've used wavs, mp3s, oggs, avis, mpgs etc all in the same prog in XP (sometimes at the same time!).
I can only suggest that you write an ultra simple media player (outside your main engine) to do simple testing.
Then if all is OK, go back to your engine and start 'rem'ing out whole sections while you test.
Unless its remotely a Blitz/XP/driver problem (unlikely) it could be Sherlock Holmes time!
I can only suggest that you write an ultra simple media player (outside your main engine) to do simple testing.
Then if all is OK, go back to your engine and start 'rem'ing out whole sections while you test.
Unless its remotely a Blitz/XP/driver problem (unlikely) it could be Sherlock Holmes time!