I was going through a .cob file creating folds (alt + r) when I went one line too far.
I hit the keyboard shortcut for undo (ctrl + z), and didn’t see anything change.
I hit the keyboard shortcut for re-do (ctrl + shift + z), and wasn’t sure what was actually being changed back and forth.
I believe I hit these keys a couple more times to pinpoint what was changing, and the crash window came up.
Crash when undoing / redoing folds on in COBOL file
Could you search your machine for the ZeusErr.dmp and ZeusErr.log filesand the crash window came up

On Windows XP they should be in the Zeus install folder. On Windows 7 and above they should be in sub-folder inside the c:\Users folder.
Could you send me those log files (see my e-mail below) and if they contain an obvious reason for the crash you will be entitled to a free registration.
Also if you come up a test file and a set of steps that can consistently cause the crash, send those to me and you definitely will get a free registration.
Cheers Jussi