Hi Kolosus, That ones been bugging me too.
I'm not at my PCLOS machine right now, but googling "kde4 keyboard desktop switching" gave me this as a result...
Start the "Control Center" and go to "Regional & Accessibility" |
> "Keyboard Shortcuts" and enter the "Shortcut Sequences" pane and set
> some custom keys for desktop switching.
I'll try and sus it out when I get home.