I've recently been using Wifi at the local books a million, but my copy of Trainz 2010 recently has had the following errors: It has crashed twice today while trying to access CMP for downloading missing assets. Recently after I patched it all the way to the equivalent of TRS 2012, it refused to let me go into CMP or start the game, as it said I had not entered my serial number. I know the serial number was entered when I first installed it. I don't know what is going on here and until I figure it out I won't be doing anything with Trainz. Has anyone else been having this problem?