256mb apature size is usually too much (set at half your system ram is usually best) you set that in the bios. It should run in 2x just fine, but some motherboards can have problems with some cards sometimes have problems. To prove that the geforce 4 does support 2x agp, here's a short spec list of the leadtek winfast A250 (gf4 4600): Hardware Features Nvidia nfiniteFX⢠II Engine Dual Programmable Vertex Shaders Advanced Programmable Pixel Shaders Nvidia Accuview⢠Antialiasing Nvidia latest nView technology 3D Textures Shadow Buffers 8 texels per clock cycle Dual cube environment mapping 128MB high-speed DDR RAM memory High-Definition video Processor (HDVP) AGP 4X/2X and AGP Texturing Support just about all nvidia cards from any brand are pretty much the same So it does support it, their must of been something wrong with your hardware/software for it not to of worked. Besides, 4x agp doesn't make a large difference yet anyway |