I too got Trainz for xmas. Sim 2010 Engineers Edition Deluxe. I really had no trouble installing, but then I tried to do the patch. The files DL'ed, but I got an error saying it could not open the DL'ed file...paraphrasing here. Also, I tried to run one of the senarios and the controls worked at first and then went haywire. Throttle had a mind of it's own and would not go to stop. I'm running an AMD 64 bit Quad with 6 Gig and a Radeon 4870 X2. Have had no problems before. Any hints will be much appreciated.