Miguel:
Here's what I did.
Right before this, I had another problem with an app crashing when it couldn't find a window. Fixed that by compiling without .PBD's. Go figure. So I thought maybe some external source was a problem. So...
I eliminated the .PBR from the project and copied the one .bmp I needed into the directory with the target. Then I shut down power to the laptop and turned it back on. (A previous reboot didn't do anything...)
Made sure I had a 64 bit DSN out there and rebuilt and compiled. Ran perfectly!
Wish I could say that I knew what worked or even if there was something I should have seen along the way. Will not be trying to recreate this one...
All's well that ends well (unless it happens again).
Dave