Just upgraded to 5.2.5.1 and while working on the slide show there's no heading on top of each slide for Normal view or Notes screen. Looks like the only way to go back and forth between the two is to go to View and then click either notes or normal. Isn't there a way to do that in one click instead of two?
I guess you are talking about Impress. 2 solutions:
1/ activate the tabs: check the entry "Modes Tab bar" in the View menu
2/ use the button "Display Mode" (in the middle of the 1st toolbar)
Best regards.
JBF