I just bought a radeon 9800xt 256mb and it seemed to be working fine until i recieved an 'out of gfx memory' error while playing a game. I then went into bios and saw that my agp apature size (how much memory the computer will map on the gfx card... or something like that) was set to 128mb, however it was greyed out and I couldnt change it to 256mb. I then proceded to update every driver under the sun including the VIA GART driver but to no avail. Whats confusing me is that in some benchmark programs it says i have 256mb and some 128mb so i dont know if this is a real problem or not. Any help would be greatly apritiated note: When I got the error I was playing Halo at 1600 x 1200 with 8x AA and 16x AF, could it be that I really did use up 256mb of mem?