Seems you aren't alone (the review ain't pretty)
http://reviews.cnet.com/Belkin_Wirel...-30879538.html
grym reeper wrote:
> Have just acquired a Belkin wireless keyboard & mouse for Xmas....it has a
> number of 'assigned' multimedia keys, for opening Internet Explorer, e-mail
> etc. That side of things works, but the relevant keys won't open my default
> music player (Realplayer), or skip the tracks (although it will adjust the
> volume). Similarly, the relevant keys won't open 'My Documents', 'My
> Pictures' or 'My Music' folders. No software supplied with the keyboard,
> other than drivers, and Belkin say I should be able to assign the keys via
> Windows. I'm using Win XP. Anyone got any ideas please??
>