(I'm not deliberately looking for these things. Really.) Found another small bug. I'd started a program i was working on and, though the screen didn't change, the "X II" that indicates that keyboard input is inhibited appeared. I hit ^R and then enter to run the program again. tn5250 crashed with "Assertion 0 failed at session.c, line 336." Upon closer inspection, my program had been running, just not displaying any output (stuck in infinite recursion). I'm not sure how important this fact is. Someone certainly wasn't expecting something. As usual, tracefile is attached.