PPSX file won't open full screen

[ruggb]

When I dbl clk a PPSX file, PP will open it in the taskbar, but will not expand to the desktop. The show will run in the taskbar. I have tried a couple files - all the same.
PPTX opens fine. Save as PPSX, OK. PPSX won't open full screen.

[ruggb]

got it. Monitor was set to automatic - I set it to primary and it works.

[JohnWilson]

Thanks for getting back. It's a fairly common problem if you have dual monitors (maybe elsewhere)