I, sorry you have been having problems with TS10. I wrote a post somewhere on how to play multiplayer in TS12. Just remember not to buy the Steam version as I don,t know if you can get all the patches now. When you install it. The first time you activate the Launch Pad, select options then Planet Auran then enter your username and password. then close the launchpad and restart. You should then be able to get two patches which will take you up to build 49922. I expect you already have Direct X downloaded from these Forums. It will probably be registered without you having to do anything else. From the Launchpad select Start which brings you to The Trainz Main Menu eventually. You really need a FST (First Class Ticket) by the way if you don,t already have one. On the Main Menu is an option for "Content Updates" There will be several hundred of these. Best to do it when you don,t want to play for a couple of hours or so. There are a lot of threads/Posts on which are the Best multiplayer Sessions to Download and also how to correct any issues when trying to join a session. My Route/session is a cosmopolitan one called Port Ogden TS12 ETC! and it is version e. There is another Port Ogden version by Danny5 called USA Multiplayer something or other but there is a thread on it. Thompson & Western is another good one which has very little in the way of scenery which makes it ideal for Lower end computers. Montana Rail Link 2.8 by Jib228 is another one I like. And I musn,t forget UMR SUMMER by Lewis which is quite popular but you really need a decent computer as it can be laggy if not. Two important points. When you have downloaded the Route and Session stay in CM and select "view dependencies" If any are missing select the tab at the bottom "View in Main List2 and scroll up and down looking for them. Drag them to Download box and, well, download them. Check that none have eluded you and then hopefully you can join the session. If you can,t try an extended database repair then do a computer restart. Any other issues joining we,ll help you with. UMR SUMMER session is password protected and in order to get it you need TEamspeak 3. Again we can help you with that. One final important point. For the best results in mutiplayer do Not buy any Payware from any source including Planet Auran nor download any freeware from any source except the DLS as this can screw up MP. I should know as installing Settle & Carlisle really messed up my session resulting in me having too release two new versions in order to fix it. This means you will have a "clean" copy of TS12, ideal for Multiplayer.