Would you like to try my save game and see if you encounter the problem?
The first one is before you approach the cliffs. The second is on the actual corrupted screen.

Ages ago, I tried to beat Return to Zork. After 5 diff tries, I finally managed to get to the end, but could never get that damn bridge to raise. Well, I tried again last night, and have run into a different problem. Everything is done, and Im about to enter the citidel. But the problem is, every ti...