Maybe a Seizure

Ok, maybe I started off lazily on BlitzPlus, but now I am working on... stuff?! well, I was trying to set the graphics to 1440,900 (my screen's resolution) and I wanted in fullscreen, so between the resolution and mode, I put in the color depth. It ended up being like:
Graphics 1440,900,16,1
then, when I ran it, I thought I was going to have a freakin' seizure! It was flashing like... wow.
what the HECK did I possibly do wrong? I used Setbuffer BackBuffer() and Flip like in Blitz3D!

post some code

Is SetBuffer Backbuffer() located inside the main loop? If so, then the program is basically canceling out the Flip command, which will cause the seizure type effect.

I don't know if the problem is in the Graphics command because I'm unable to set my screen to that resolution.

I also can't say because there's no code posted ;)

tanks
:s