Problem that has halted my progress.... *SOLVED!*

[Hguols]

I did a few things between building on SOM, one of which was a graphics card driver update, installed a new game, and installed a program called PhysX (to help run the new game)

I'm not sure if it was one of those things or not, but none of the map pieces display in my editor. ‎ (the upper right square that samples what the map piece looks like is either blank/black or stuck on a non-rotatable map piece #1)

I've tried restarting the program.
I've tried rebooting my PC. ‎ 
I've tried reinstalling the TOOL folder.

The map pieces are not corrupt, as test map works fine.... ‎ I'm just flying blind and can't see what I'm placing. ‎ (as I can't remember what each piece "looks" like just from the icon)

Any ideas how I can start seeing things again? ‎ ._.

EDIT: ‎  The solution is at this post. ‎  ( ^ - ^)