The Oblivion idea is based on the ATI patch for Oblivion for which HDR and AA didn't work originally with ATI cards. ATI then released a patch making it possible to have HDR and AA at the same time. And ever since it seems to help in some cases if you rename the EXE of other games when you encounter various graphical problems. So, it's not actually a preset thing but apparently an internal driver problem. But yet it didn't help me neither with Div2 nor with Fallout3 for example.
