Welcome to TSF... sorry about being so late. I just wanted to let you know that we have looked at your post, but I can only speak for me self here, but I'm stumped. It sounds like the uninstall didn't get everything, and the only way to find out would be to look at what all was installed and check each file individually, or wipe the Hard Drive and re-install... Neither of which are good solutions.... I haven't play C&C, so I have no idea of how to setup the LAN multiplayer.... I am however going to look around online and see if I can find anything that might help... I just wanted to let you know you weren't forgotten and we are trying to help.