Thanks, can I get a new build to confirm?
Perhaps later tonight, but I can't promise... or tomorrow morning.
Still an issue though, start zx81, tab and select Video Options then Keyboard Only. The MAME window is now lost and has to be killed. BTW I run MAME in windowed mode.
Could you try using the exact same command that QMC2 uses from command line (see front-end log or emulator control panel)? It may be caused by some other setting that you're using. Be sure to use the same
working directory that's used from QMC2. When the result is not the same, then it's probably a QMC2 issue, otherwise you may find the culprit this way...
EDIT: I always recommend to disable 'readconfig' to avoid any ini-interference.