I am using an ATI AIW 9600 video card (yes, overkill for mame, but was obtained at a screaming rate). This is one of the cards that works with their component video adapter, which I'm using for my TV. The only resolution that does not bleed off the screen is 640x432. I was able to get this res by using the Powerstrip tool. It does not show up in the Windows settings slider, but does show as one of many selectable resolutions from my ATI taskbar icon.
However, if someone knows of a way to get my component TV to run at one of the standard resolutions, please let me know. This would make configuring FE's much easier.
With that said, if I have been using this res on my TV, doesn't that mean my video card supports it? And, if I've been running at this res, it would seem that the layouts/skins for various FE's would run at my specified res, wouldn't they?