Terminal session

Hi,

I've seen numerous threads around CTRL+ALT+F3 to get to a terminal session, that works just fine. The problem is that I cannot return to the GUI, i've tried all the different CTRL+ALT+F1 to F10

without it working. The only combination that does something is CTRL+ALT+F5 or F6 which brings only a blank screen with a cursor at the top left hand corner. I can do CTRL+ALT+F3 to return to my session but cannot do anything else, I have to reboot.

Anyone know how to get back to the GUI correctly?

Running 9.2.6 on a NUC5i7RYH

Thanks

Found it... for me it's ALT-F1 to return to the GUI.

Thanks