function keys / home / end are not working

[frido]

Hi,
I just installed developer 8.02.1505 and the shortcuts aren't working any longer. When I press F8 nothing happens, Home and End Key does not have any effect. Are there some new settings in developer8 to enable / disable that ?
In developer7 I have no problems (parallel installation)

 

[frido]

solved, I resetted key configuration in preferences to default and it is working now ... the configurations were completely empty after installation