Hantarex MTC 9110 advcfg problem

[STuarticus]

Hello, I have been building my arcade machine for some
timi now and have hit a difficult stumbling block in
the form of advcfg.  I can run games with dmame
-monitor arcade, but the resolution is low and there
are random white lines about 1 inch long flickering on
the screen.  I can also run the arcadeos front end but
it crashes when i try to run games.  What I would
really like is to run advmenu but whenever i load
advcfg and enter the settings The test screen is
completely wrong; the monitor shows roughly 16 screens
of varying degrees of clarity .  My monitor is a 25"
Hantarex MTC 9110 and I am using a RageII pro graphics
card. I hope these symptoms are easily diagnosed by an
expert, Thanks!

Stuart