ArcadeVGA not working

[imtrashed]

I'm ready to throw this thing out the window.  Had my PC completely set up with Hyperspin, MAME, a few other emulators, and all the games I want available with videos and artwork and everything.  Then plugged in ArcadeVGA card and Hyperspin was freezing.  Remedied that with a download of Flash and disabling hardware acceleration. 

Finally starting hooking up this PC to my cab with arcade monitor.  The only way I can get a decent video picture on the arcade monitor is with both the arcade monitor and PC monitor plugged into the card and only when set up for duplicate displays with resolution at 640x288.  That combination produces a picture.  If I change resolution to 640x288, I lose it.  With only the arcade monitor plugged in, screen rolls.  V hold doesn't fix it.  The moment I plug the PC monitor into DVI with arcade monitor on VGA, I get picture back. 

Can't boot with just arcade monitor... screen rolls. 

Dell Optiplex PC (with onboard video that I am not able to disable in BIOS)
Windows 7 32 bit

Hoping to get this sorted out.  Any help is appreciated.  Been at this all day trying way too many things. 
Once this is sorted, then I have to see about setting up resolutions for all games and emulators.  Can't get either AVRES or MAMEResTool to work. 

[imtrashed]

I'd really rather not start over with setting everything up, but if I had to jump ship and abandon the ArcadeVGA card, what are my options regarding sending video to the arcade monitor from my PC's onboard video card?  I paid for a subscription to Hyperspin and Emu movies, so I'd like to stick with Hyperspin, but if GroovyMAME and CRT Emudriver are going to be my only option, I guess I can go that route.  Thoughts/opinions?