Using 8800gts 640mb. In the nvidia control panel I set AA to override application settings and set it to 4x but it does not work if HDR is enabled. Only if HDR is disabled I get the AA to work. Using 97.92 drivers. I actually didn't realize that Oblivion was not running with the AA on. I just assumed that it was on because I set it to on in the control panel. I always did notice some jaggies, but I didn't think much of them until today I disabled HDR and the jaggies were gone. I did some more testing and indeed the jaggies are only there when HDR is enabled. I thought you could use HDR+AA with the 8800 series, wtf?