The "plaque with selection choices" RDR.EXE refers to is the modified plaque used in Wheel Of Karma to bring in a new RPG dimension.Scaling the HUD to the max size (as it would be in Vanilla's 320x240 resolution) crashes the game when a plaque with selection choices appears.
So
1. Start the mod (or any others that have selection plaques) and play until it pops up.
2. When it does, go to options, and set the "scale" slider all the way up to the max. It's fine until the 2nd highest, but if it goes to the highest the game will crash.
Shanjaq, please contact me for the HexenC code of the RPGified plaque.

My mod can be found on moddb to reproduce the bug.