Wow, thanks so much - I guess I really was a bit thick with that one. And it's one of those occasions that you always feel you've tried clicking every option...
Cheers,
Daniel

This is a pretty awesome piece of software. I've been using Virtual Desktop for half a dozen years to help replicate a Unix-style integrated multidesktop environment, but with that programs inability to maintain the cycling wallpapers of Win 7, decided to give this software a whirl. Pretty impressed...