I still have mora than 1,5 gb of free ram when I try to load the map, so I that's not the reason. Since there seems to be no solution for my problem except for installing new hardware, I'm giving up stlucia and I'll wait for the beta-release. Maybe I'll have a new system by then. However, thanks for your answers guys. What I've seen of TDM so far looks really cool and I'm sure it will be an awsome game when it's done!