I've got 0.25, the bios, the Darkman Plugin. I think I have every thing set, but whenever I run the program, any time I move the option to a different one, it has this...almost 8-bit screech going on.
Very strange. Never happened to me and never heard of anyone else that got a problem like that. Ever.
Until now that is.
It's not like you can't try another far better emulator, like nullDC or Demul. Chankast's been dead and buried for over five years anyway. I'd still check my sound card drivers if I were you, though.