Advmame trouble with one set of resolutions

[menace]

So I got advmame all set up using the trident and Jpac and all the video modes look good except 1: 288x224--namely pacman, galaga and company.  I created a custom resolution of exactly 288x224 at 60.06 hz and without fail advmame chooses 400x272 (a generated mode) for all games in this resolution class.  and if i pick 288x224 manually it doesn't look so hot--I'm quite frustrated now.

So for those of you running advmame, what resolution did your advmame pick for pacman etc.?

[menace]

nevermind--got it figured out

[b3atmania]

Pleae share your solution. However obvious, it may help someone who use the search.

[menace]

I cheated--I made pacman fill the screen without distrortion by using the monitor controls, then i went back into advv and reconfigured all the other resolutions to fill the screen--took awhile but they all look good now.