I recently installed the 5th anniversary edition on my computer. It generally runs just fine. Here are my computer's specs: AMD 7750 dual core 2.7 ghz 4gb ram ATI Radeon 4650 1gb Windows 7 Ultimate My only problem is when I open the stats/inventory/spells/quests menu. My character shows brightly (possibly because of a ring I'm wearing that has light), and the frame rate goes way down. If I go into the alchemy interface, it speeds back up. If I get out of that menu, it also speeds back up. This is kind of a minor thing, but it is somewhat obnoxious. Any ideas on how to fix it? A couple of other things I want to note: no other installation of Oblivion has ever been on this computer, and there are no mods whatsoever.