emmmm. i have it on 1280x1024 but trid it at 1600 1200, but still get it. Using the larger screen res, how come Maya no longer defaults to cover the full screen size? just sits in the corner waiting to be maximized.
almost all programs that i know of will default to the last screen res. That is why you had to maximize after cranking your desktop res. to fix the warning maybe try deleting your prefs files in the my documents/maya.5.0/prefs folder. This may help but will delete all customized UI elements.