Google says nothing but problems.
Apart from this guy who used VGA
Time for a new graphics card not monitor.
You dont "Like" 800x600 ,you are limited
to it by the fx5200.
Anything that low will look terrible on a TFT, Much worse than a CRT.
Do you have an AGP port?
X1950 XT agp if you do have
2400Pro 256MB pci if you dont<< Then you'd still have cash for a monitor
2500K 4.4ghz,P8P67Pro,120gb Force3, 12gb Vengeance,R9290,TX850v2,W7HP,LaCie Blue 22" crt COMMODORE 64 Silver Label 1Mhz/128D 4Mhz(Z80)