Can't play any CD+G?

[sigma]

I tried the 2.400 and 2.517 demo and found that while the software works great with the ASPI layers on a variety of computers, I can't get it to play any CD+G titles on any of them, tried 3 with different hardware and software. These machines are properly maintained, I scoured the forums and tried turning of hardware acceleration but got pretty much no where.

When I play the CD+G I get basically hash of the original score.
I get garbage on the karaoke screen as well.
Left to it's own demise the software eventually abends.
I bought the software thinking it was probably a demo problem
but it fixed nothing.
I even wiped out a Compaq, reinstalled from scratch and could
not get it to work.
Was successfully able to test my Yamaha 6416 though.

A hint would be appreciated.