In my current app, all of forms are based on a simple class I wrote using an 800x600 area and are set to be maximized.

On machines that have 1024x768 MOST of the forms display their background on the entire 1024x768 area (which is desireable) but some only display the background in 800x600. All of the form settings appear to be identical:

MAXIMIZED Window State
No Sizebox
No Scroll Bars
No Title Bar
FIXED Boarder Style
Same .BMP background

Ideas??