Hi everybody, here goes my BIOS information related with AGP I could find through it sections:
---> Advanced Setup
|-> AGP mode: x1 (*)
|-> AGP Comp. Driving: Auto
|-> AGP Aperture size: 64Mb
---> PCI / Plug and Play Setup
|-> Allocate IRQ to PCI VGA: Yes
(*) = I modificated this parameter several times to probe them all with Mandrake. All the possibilities are x1, x2 and x4... and no one works with MDK.
My system BIOS is AMIBIOS (American Megatrends)
I hope this ease the way to solve my problem. Thanks.