I dunno Justin, on my system comparing same routes, same locations, same trains, same camera angles, same quality settings I get zero difference in FPS between TS2010 native mode and TS12. And I think if the developers had actually changed the graphics engine for TS12 one of them would have corrected me by now. I could be wrong, I often am, possibly they did some tweaks that are only observable on high end systems like your Alienware (wanna trade systems so I can find out? :hehe: ).
Zec, lessee;
1) There are updates available, you'll need to grab these. This will occur with a 'clean' install of TS12.
Tried that, of the 280 some odd updates available in the list, none are dependencies of the route or session. I will try downloading them all tonight, the first attempt I got a bunch of faulty Russian updates for some reason.
2) One or more of the items used by the session/map (or the session/map itself) have been modified in some way.
Wasn't me, I never touched any of the assets with the green triangles in the above list, and if they're "locally modified" wuffo they won't revert? Cripes, when I delete them and download them again they get the green triangle as soon as the download helper installs them, so it can't be anything I'm doing.
Or, if you are the original creator of the map/session, then you might have to 'delete' and then download the map from the DLS to ensure that you have an 'original' copy. This is to ensure everything is the same.
Exactly what I did, started with a copy that had nothing in it except built in assets, then downloaded my route and the multiplayer session into that. Took about 2 hours, grand total for route and session was 312 megs of downloads. None of my content is in the "locally modified" list, or the "needs an updated version" list, see this;
http://forums.auran.com/trainz/showpost.php?p=856091&postcount=15
for the list of everything that gets a green triangle every time I delete and redownload it.
TS12 should re-download modified items if they are on the DLS.
That's the problem, when I launch the session it does all that, but the next time it does it again, and the next time and the next time ad infinitum. Somehow somewhere it's making all the changes it considers vital to national security long enough to run the session, then erasing everything when I exit the session so it has to do it all over again. I noticed that with Phil Skene's Downtown Traction multiplayer, but that's not as big of a PITA because it's only two files that it repeatedly fixes.
Somehow somewhere there's some kind of cache that's not clearing or files reloading from somewhere after the multiplayer session launcher does its thing, because by all that's holy it should only have to fix it once, so the next time you run the same session there's nothing to fix.