I had this same problem on windows that you are describing as far as slow and locking up like that. I removed the company and the game into like this... Skip the Intro Sequence in Oblivion This tweak will skip the intro company movies and the Oblivion loading will show right away. Remove the intros: Open the ini-file located in: My Documents\My Games\Oblivion\Oblivion.ini. Make a backup of Oblivion.ini before editing it in case anything goes wrong. Search for the string: SIntroSequence=SIntroSequence=bethesda softworks HD720p.bik,2k games.bik,game studios.bik,Oblivion Legal.bik and change it to SIntroSequence= also a lot of great set up and fixes can be found here http://www.uesp.net/wiki/Oblivion:Technical_Support I had so many problems with this game when I first installed it under windows (may be the ati graphics card I am using) but with all the little tips and tricks here I got it running great. But yeah on widows mine use to freeze there and I used that trick to remove the movie and start intro.
