Yesterday when we went to play Civ4 we got the download new patch dialog, we downloaded it and during the installation received an error stated that it could not find the Civ 4 source and then the installation "finished." After that the game will not run. We tried uninstalling the game, but the uninstall fails. I've tried running setup on the original disk, but it says there is a newer version installed and that I have to run uninstall first, which, as I said, fails. I downloaded the full 1.74 patch and tried running that again, failed again on the same error stating that it couldn't find the "source." I've read the other posts, I'm not getting a direct x error, but tried reinstalling direct x again, patch still fails, uninstall still fails. Short of going in and editing the registry, how to I fix this huge patch fiasco since I can't seem to install or uninstall the game?? BTW, I just have basic Civ 4, no expansions. Thanks.