Ok, I've installed an ArcadeVGA on a Windows XP home edition PC, along with the included video drivers and ATI control panel. It is outputting to a 25" standard res arcade monitor.
The windows desktop appears fine, and I can change resolutions to 800x600 and 1024x768, though the later two modes really push the monitor past it's limits and don't produce a very attractive mode. So I want to limit the resolution settings to 640x480 only so that Windows games don't try to use those resolutions.
My first step was to remove the "quick resolution" bee icon in the tray so that users don't accidentally set the res higher than 640x480. The ATI tab let me check the option "disable quick res icon", but it would not keep the setting! So I had to run MSCONFIG and remove it from the startup entries... (SHEESH!

)
Anyway, even though I have the monitor set to Standard VGA 640x480, the slider still allows up to 1024x768. So, at Andy's suggestion, I went to advanced properties, display tab, and selected the default monitor. I set it's maximum res to 640x480 @60hz and clicked OK and rebooted. But it made no difference! The resolution slider still has all three choices. In device mangler, my monitor says Default Monitor. Any ideas

?
My second issue is when playing DVD's, either in Media Player or WinDVD, the bottom half of the picture is chopped off! Andy suggested I go to advanced options and turn off overlays, but that made no difference. It could be a problem with just anamorphic DVD's, but I haven't tried non-anamorphic DVD yet to prove my theory. Any other ideas

?
Thanks!
Rod.