I've been having a problem where sometimes when I click on an Advisor or adjust the map view, the game will hang for a minute or longer. If it goes too long I usually try to CTRL+ALT+DLT back to the desktop and check if Civ4 is not responding, but it usually is running alright. But when I ALT+TAB back to the game I only see a black screen except for the Civ4 cursor icon. So I go back and forth from the game to the desktop and back to the game, trying to fix it, and usually after 10 minutes or more, I'll ALT+TAB from the desktop to the game and miraculously I'll see the game world and everything will be fine. Has anyone else had a problem like this? I'd wager that most people would just CTRL+ALT+DLT and terminate the game rather than wait. The only reason why I bothered was that I hadn't saved in a while and I was desperately trying to recover. As I mentioned, this only happens when I adjust the game view, like opening an Advisor menu or altering the map view. The worst instance was when I had it show the gridlines on the map -- that instigated the 20 minute long recovery period, at the end of which the game recovered and the gridlines were displayed. I saved the game and deactivated them, and after a few minutes lag they disappeared and the game worked fine. Just so you know, here's my system specs: Athlon XP 2100+ cpu 1.5 GB DDR333 PC2700 memory ATI AIW 9800 Pro 128 MB video card I know my system isn't high-end, but I can run the game adequately. At the beginning it ran fine, but now that I explored the entire map and I control half the territory it is a bit slow, but I haven't had any serious problems. Also, this might be related or not, but I also experience the audio/video stutter in the Wonder movies.