Bug:
Adding an external display to windows, or switching displays while the game is running causes ZC to freeze on the Matrix screensaver; exiting the program through Task Manager causes the last save data to be destroyed if in a game.

Repro steps:

Start playing your favorite ZC quest
Pause the game such that the Matrix screensaver starts
Plug in a secondary display (easily done with a laptop)
Make sure this display replaces your current display
Notice that the screensaver is frozen and a blue-tint
Try to quit ZC

Results:

ZC must be shut down from task manager
If in a quest, the save data will be corrupted