"I'm still not sure what you mean by "wrote your own BIOS" either. Are you saying that you created your own complete set of PC BIOS routines from scratch and did one of the following? - Flashed it over the BIOS code on your motherboard - Swapped the BIOS code chip with one containing your own code - …

I wrote my own bios because I wanted to support dual monitors back in the DOS days and the idiots who wrote the IBM bios couldn't imagine doing that. The BIOS talked to the "logged" monitor; if there was a monochrome monitor, I wanted the menus to appear there. Also I needed to-the-pixel control of …

This is a Dell Workstation, dual Xeon processors, running Win XP Pro, 2 Gig Mem. Dual SCSI 36 gig drives. Big flat panel screen; I have no idea whose video card is in the box or the MB ID--it is my work machine. I tried DOSBOX to run an old DOS graphic app I wrote in Lahey Fortran EM/32 and ASM, …