I just updated my PC from XP to Vista and since then I have been having graphic issues with Railroads! I have all updated drivers installed and I am running on a Pentium Core Duo, 2gig DDR2 RAM, and an Nvidia 8600 GT. I have never had any problems before with windows XP accept for the minor crashes here and there. However when I run Railroads now my tracks will dissappear and also sometimes the land. The game doesn't crash though. I even have the graphics all of the way down on the game. Is this a memory issue? My PC runs fine with anything else. If anyone has any ideas on how I can fix this problem I would appriciate it. Thanks.