I am trying to play nfs: underground 2 and the highest in game resolution is 1024x768, in silent hill 4 the highest resolution is 800x600, these are the highest choices i get in the options. All other games are fine, I can go up to 1280x1024 highest detail settings.

Specs:
Athlon M 2500+ @2500MHZ: Fsb200
Asus A7n8x-D
1gb crucial pc 3200
nvidia 6800gt
(2) WD 80gb HD

running all the latest drivers

So, you're problem is...? And no, the resolution on NFS:U-2 goes higher than 1024....

my problem is that i can't get a resolution higher than 1024x768 in the game options menu.

have you installed any monitor driver .inf ???

all drivers are up to date.

My monitor is the Dell 1901FP on a PNY 6800gt

yes up to date is good ...
but sometimes there are some problem with those drivers ...
I know the problem, too
I am able to set 1280x1024 but some apps do not want to give me that option
in most cases 1280x960 is the highest ... when I do remove my monitor driver I got the full spectrum of resolutions ...

that mainly got something to do with the refreshrates set within inf per res and the GPU driver telling ... HEY this ain't possible when the game does not correctly ask for it

Hi
when Vsync is on, more than one screen buffer is used.
This can steal your needed graphics memory.
To see if it is this, disable vsync and the modes should appear.

This shouldnt be happening with a GT unless the number of prerendered screens is set quite high. Normally it is 2 or 3.
Something tells me this isnt your problem, but worth a look.

I use Rivatuner (for NVidia cards) to check under direct3D / VSync.
You need to press the funny buttons (the 2nd customise, then second button then VSync tab)

I fixed it! What I had to do was connect my analog cable to the lcd and run NFS: Underground 2 than went to the options in the gane there all the resolutions were present after that i went back to my digital connection and it kept all the resolutions from the analog connection. I hope this works for others.

that's a bizzare solution...

i should give you all the option even when using DVI

strange