Dear List

I need your help. I'm trying to change my BIOS settings for a Chips and Technologies 65550 chip (on an Adastra VNS686 motherboard) to run a 1024x768 LGPhilips LCD screen (I used to run a 800x600 IBM panel). I have the display running but I'm losing bit 0 for the red, green and blue channels which is affecting the way colours appear.

I have the BIOS editing program BMP550 but I can't figure out what I need to change to drive the screen properly. Any advice (or a BIOS file) would be much appreciated.

Cheers
Chris