Steps to reproduce:
1. open any presentation
2. Push f5 botton or
Current behavior: DOn't do anything
Expected behavior: Push i full screen and presentation mode
Platform (if different from the browser): Ubuntu amd64 12.04
Browser: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:11.0) Gecko/20100101 Firefox/11.0
[Not Reproduced] with "LibreOffice 3.5.2 - Debian 6.0.4 i386 English UI".
If you press F5 you see the presentation in full screen.
Build ID: f8fce0b
Windows 7 Professional SP1 64 bit
Could not reproduce. Maybe some system action in defined when F5 is pressed?
Do not hesitate to reopen if this bug is reproducible with the latest stable release.