I've just installed 3dMark03 and ran it. I got a score of 310. Compared to the score of other similar systems, this is way too low.

Here's my computer's specs, just in case:
Motherboard ASUS A7V8X-X
AMD Athlon 2600+
512 ram
GeForce fx 5600xt (@285Mhz GPU and 420Mhz Memory)

I was about to overclock the video card a bit more but looking at that score it was a bit strange. Just in case here's the results of the benchmarks as well:

Game Tests
GT1 - Wings of Fury 8.5 fps
GT2 - Battle of Proxycon 1.4 fps
GT3 - Troll's Lair 1.6 fps
GT4 - Mother Nature 3.2 fps

CPU Tests
CPU Test 1 17.5 fps
CPU Test 2 4.2 fps

Feature Tests
Fill Rate (Single-Texturing) 52.9 MTexels/s
Fill Rate (Multi-Texturing) 229.7 MTexels/s
Vertex Shader 3.3 fps
Pixel Shader 2.0 6.0 fps
Ragtroll 1.2 fps

So, is there a problem here?
Also, I'm a n00b with overclocking stuff, should consider a limit on the clock speeds? (before I start seeing artifacts and stuff)

Not a great board, not enough RAM, not a great video card. And there are several different versions of the 2600+...which one do you have?

Have you installed the latest VIA Hyperion chipset drivers?

http://www.viaarena.com/default.asp...

Have a look at this chart:

http://www.tomshardware.com/2004/10...