It works, it works!!!. It was the missing entry in data.c after all. It works fine for me in 1280x1024. In other modes the "virtual screen" is greater than the physical. Anyway, thanks a lot Nick, now I can use Plan9 at home!!. Anyone has tried it for Ultra TNT??. What would it take to add 16 bits support??. Just in case I have some spare time... Saludos, Gorka