Mamewah/monitor issue

[Blacksmith]

I posted this question over on the monitor forum, but maybe it's a software issue?

I have kind of a weird situation here and hope somebody on the forum can help.  Let me say that it has been quite a long time since I've been on this forum or have messed around with Mame or my arcade game.  That being said, I have a Mame machine that I have had for quite some time now.  I really have not turned it on in over a year, although my kids bang on it from time to time.
I turned it on the other day and wanted to play world class bowling (kind of a cool game) and noticed a monitor glitch that my kids tell me happens EVERY time they try to play the arcade machine.
It seems that ONLY when the machine is in game mode, or actually playing a game, the game will cue up and they every other second the monitor flicks on and off.  In this particular game, as soon as I touch the track ball to set the bowling ball up for the shot, the screen flicks off, then comes back on.  Then I roll the ball and the screen flicks off, then on, etc...
I originally thought it was some sort of a track ball issue, and took the whole thing apart, then reassembled it. It was pretty filthy, but cleaned up nice.  Turned the machine on and still have the same problem.  (rule out the trackball)
Got out of game mode and machine works fine in windows.  No issue with monitor flicking on or off on the desktop.
Got back into Mamewah screen to pick a game.  The Mamewah screen with the game menu works ok with no monitor issues.  As soon as I go into game mode, IN ANY GAME, the screen flicks on and off.

I have a wells gardner D9200 monitor (about 6 years old), arcade VGA card, ipac, opti-pac, and running Mamewah frontend.

Seems like mamewah is the issue here, but I don't know zip about it.  I had a guy load it up a couple years ago that was pretty versed in the setup, but he moved away and I'm kind of on my own here.  I'll try to stumble through this, but hope the group can guide me.
I did a little research on this last night and figured maybe the Tri-sync utility program was never run.  I downloaded it and ran it this morning and no changes.
HELP please!
 

[northerngames]

sounds like the games are getting a high res they cannot handle to make it short make sure your mame.ini is setup like it states on the ultimarc site and use the res tool and you should be all set.

use this tool http://www.ultimarc.com/avres.zip

if that fails try reinstalling your arcadevga drivers.

if that fails you may have a monitor or power issue.

[Blacksmith]

just a follow-up here.  I also have "emu-loader" installed on my arcade system and that seems to play all of the games flawlessly without any monitor issues.
I will still have to try the AVRES program, just don't know why mamewah is giving me this headache?

[headkaze]

Have you checked the command line MameWah is sending to Mame? Perhaps it has the switchres option set or something?