Ok, I have Microsoft Keybord Natural Multimedia something... and I have buttons where I can adjust volume, in explorer it works perfectly ... but while I'm on Litestep it doesn't work.. it is just freezed, even "Mute" button doesn't work... is it possible to fix it somehow?

Yeah, try the anykey modules.

I'm not sure that this is because of Hotkey... I thingk it's litestep...

http://www.litestep.net/index.php?section=4&action=view&catId=3&id=3589&hl=notebook