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Hi all, I *finally* got X windows running on my TP755CX's LCD in 800x600 mode! I was beginning to think it wasn't possible... Anyway, the magical missing piece I needed was to run "PS2 MODE3X ON" under DOS (to apparently install video mode 3 extensions), then boot into Linux using LOADLIN.EXE. Then my XF86config worked the first time (I posted the modeline in a previous message). Now, I'd like to run a pure Linux machine without DOS, so I decided to write a C program for Linux to perform the same function as "PS2 MODE3X ON". I tried to disassemble the PS2.EXE program under DOS using the latest version of Sourcer, but Sourcer says that PS2.EXE is a "modified Windows NE executable format", and refused to touch it. Next, I fired up Turbo Debugger to try and step through it, but Turbo Debugger complained that it was an "unsupported executable format". So my question is this: Does anyone know how the MODE3X function works internally? Is it something that's a documented part of the Western Digital chip? Or does the PS2 program simply enable a different BIOS INT 10H handler? (OK, so it was three questions :-) If anyone can help me with this, I would greatly appreciate it. I also intend to release the completed program to the Linux/Thinkpad community at large (assuming I don't have to sign an NDA with IBM to get the information!) Thanks, Jim Lee jlee@ece.orst.edu