I am still amazed. I can not get anything beyond the 4.5s to work. I just did the ATI and then modded them to install. Fresh install with no changes to settings - choppy video. I can get awesome video, but I must change the performance in the video settings to the middle (basically disabling a lot). Uninstall, re-install 4.5 and everything is back to normal.
OH well. I am just going to be happy with what I have.