Have you tried using the stereo outputs on the board instead of the mono output from the jamma connector? I've got one the same, only trouble is this output is not amplified.

yosai wrote:Not in the us but I would recommend IC-China on ebay.

Great service every time I have used them

+1 for them
never once had a problem and really quick delivery

always change my batteries straight away too.
there is a cps2 suicide test program available on cps2sock which will only run if the board has suicided. If it hasnt suicided or the decryption key is corrupt then it will not run.
just burn it to a 27c4096 and replaced the eprom in socket #3

I use one of the above VGA boards too and have the same problems with certain games including Double Dragon. It tends to be the older boards or ones that are pulling more voltage than normal.