I'm running 2006 Build 3335 & Ver. 2.6 & 2004 Build 2365 Ver 2.4. I don't know if I did a service pack way back then. How can I tell? Could these help with my downloading problems & kuids that should NOT show as faulty? The creators of some kuid have told me there should be no problems & 1 sent me a built-in that was missing. If I should update, do I need to do 1 then 2 then 3, or will doing 3 cover everything? Even if this has nothing to do with the DL problem, I'd be smart to update? What am I missing without the updates? Can you reinstall Trainz (just in case everything didn't load) without loosing your created layouts & extra content I've installed? THANX much !