How to disable screensaver when docked?

Just installed HeXen yesterday and am loving it.

My question: I have a Motorola dock\charger that I use on my desk at work. My D2G makes a sweet desk clock / weather station when it's mounted in the dock, but unfortunately after a few minutes it goes to a 'screensaver' mode where the background goes completely black and just the time is displayed.

I don't remember it doing that when I was stock.

Is there a setting somewhere to disable the screensaver action?

Thx!