Debug: http://dl.dropbox.com/u/6399047/debug.err
DxDiag: http://pastebin.com/m9zfYwUv
Save: http://dl.dropbox.com/u/6399047/AutoSaveLocksUp.EleSav
When I hit end turn the game just hung there and I wasn't able to do anything except move the mouse around. The end turn button was not grayed out like the other hang bug. When reloading my game I noticed the auto save was on the turn after it had frozen up on me. However when I hit end turn the tech menu popups up and after I pick a tech the game once again freezes.
I've loaded the game 3 times now and every time it freezes after you pick the tech on the start of your next turn. I've included the Save file since it does seem to be an easily repeatable bug in that save.