[newbie] Please help...Laptop XServer Problems

[Br. Karekin Madteos Yarian, BSG]

Any help???

I have recently installed Mandrake 7.0 on my HP Pavilion N3215 laptop. I
can't get X to work at a resolution higher than 640x480.

Mandrake automatically installed the XFree86_FBDev server which is more than
RedHat 6.2 did. No matter what I try...and I have follwed the advice of two
people on the Linux laptop pages (two different and unworkable solutions to
boot) and to no avail.

Here are my card and monitor specs.

Card: Trident CyberBlade 3D 17 AGP with 4096 RAM (stolen from physical RAM)

Monitor (per HP): HPA 12.1" SVGA Passive Matrix
VertRefresh: 75 Mhz
Horiz Sync: 85 Mhx 


I have tried and failed at any number of combinations with Xdrakres.

Xconfigurator has let me manually input all the above info and still can't
find a workable resolution. All I want is 800x600. In spite of the fact that
my monitor supports 1280x768 while in Windoze.

The BIOS allows me to allocate Auto, 4Mb or 8Mb to Video RAM.

Any suggestions?? I'm about desperate. I wanted to get Linux running on the
box so I could travel and learn with it.

Karekin