yeah, whether i get this to work in widescreen or not, this is a really fun game, when i get it to work on this i'm gona try and get it to work with red alert. but what exactly is monitor scaling, and how do i do it? my guess would be zooming in.
Check the wiki on scaling options. You have to check your monitor's settings. In most Dell widescreen monitors, there's 3 modes.
1:1 - Exact pixel for pixel, no bigger (640x480 would be tiny in the middle)
Aspect - Screen is stretched to the top/bottom of the inside of the screen, but the aspect is kept intact, so 4:3 game will have black pillarbars on the left and right
Stretch - Screen is stretched to the full size of the display, this can cause distortion, but this is the mode you want for C&C and RA1's 640x400 option as it will make it look proper again rather than stretched tall.