Alright, just an update. Hadn't opened WED in a week probably, and all of a sudden it's working. I never did anything differently, it just started working all of a sudden, however I'm still having a few minor problems, like the walls and ground don't match, they don't flow together if you know what I mean. Plus I'll get a little dialog box in-game saying it can't find one of the normal maps (even though it is in the folder and it obviously finds it because it's working now.)

Here's a picture of the error message:


I'll post some screens and more updates as they happen...

Thanks for your help!

And now that I think about it, possibly building the level using "Build Simple Map" may have done the trick... I just opened another level that wasn't working right, and after doing that it worked. And every time I've compiled the level after that, it's worked.

Does that sound like that may have been my problem? That I didn't compile using "Build Simple Map"?