Accidental Invocation of MPE/iX CI
If you make a typo and accidentally type CI instead of VI when you want to get into Visual mode, a new copy of the MPE/iX Command Interpreter (CI) is started inside Qedit, and you end up at the MPE prompt. This can be very confusing, especially since it looks as though you just pressed Break. In fact, the “CI” was interpreted by Qedit as an implied :Run command because there is a program called CI.Pub.Sys (the MPE/iX Command Interpreter). You should see the following message:
Warning: Nested MPE XL Cmd Intrptr. :EXIT will get you back
To check whether you are in this second Command Interpreter, you can SHOWVAR HPCIDEPTH. If you ran Qedit from the MPE prompt, this value will now be 2.
To get back to Qedit, do not run Qedit again. Instead, type EXIT or a colon, to get out of the CI and back to Qedit.