I wasn't sure whether to post this in the retogaming forum, but I saw that gthom3 posted here today and he mentions his Jamma cab in his sig I've got an old pc (500Mhz Athlon 256MB ram) with an Ulitmarc ArcadeVGA card and a J-PAC into an old Streetfighter cabinet. I can get the display working fine on the computer monitor and the arcade monitor works fine with the Streetfighter board in there - but when I put the pc in the arcade cabinet, the display is unreadable. I've tried changing the dip-switches on the J-PAC and I'm sure the graphics card drivers are ok, but I just get a 'smeary' display that's unreadable. I've also got an old rage 128 pro which is supposed to be up to the job, but the display is the same. Have I done something really obviously stupid? Help and thanks! W.