Thanks to you both! It wasn't a problem with normals (I dont think those show up correctly in Blender), but your tip did make me investigate further. Plus I did have to turn lighting off... kinda of a bummer.
I had used a new modifier - Boolean - to make a hole in the door frame. This caused some really odd behavior. The faces were not aligned correctly. So.. it was like it was gone in blender, but not gone when exported. I had to completely redo the frame, which was rather complex. The Boolean modifier had made it a 5 minute job. But, then I had to go back and fix the geometry which is always a PITA.
Have not made a normal map yet:
Sometimes I think a normal map is better than creating the extra edges... I dont even think you can see the edges I made.