How do I quit Presentation Mode with an external monitor connected to my MacBook Pro?

Joseph,

I have been corresponding with a Senior Advisor at AppleCare who passed this problem on to Apple engineering and the following is the results received from that advisor.

I heard back from engineering.

They are telling this is an issue with parallels

I included the web link above that they also found where other users are having the same issue.

They are suggesting that you call their support.

Weeks went by before coming to this result. I have not yet been able to connect with Parallels, but hope to do so soon.

Thank you for your efforts in this matter.

Rayintheburg

Joseph_S,

Pressing the Esc. key does nothing. I'm pretty sure Keynote was not involved in the problem since I have never used that app. So I found Keynote in my app folder so I could try some of the suggestions that were in the resource you provided, but could not find the things in the toolbar that I should try. For example, the black triangle that points to the right that should be in the toolbar wasn't there. Let me call AppleCare to see what they have to say and I'll let you know if they can solve the mystery. I'll get back to you.

Rayintheburg

Joseph,

I went through three or four Support Advisors plus two Senior Advisors and after about three hours total time, it was decided to refer the problem to the software engineering people at Apple. We anticipate an answer of some kind later in the week. I'll advise you of the results.

Rayintheburg