On the subject of the volumetric clouds -- I asked once before but never got a reply -- does anyone know how to make the clouds animate?  I've tried putting numbers in the 'animate' window (it seems you can't set keyframes, it just changes the setting from frame one no matter where on the timeline you type).  No matter what I do, I don't seem to get any animation.  If someone knows how, I'd appreciate hearing about it!  Thanks!

SF to LA: From June 1 to June 7 2007 I will be riding my bicycle 545 miles to help support people living with HIV/AIDS. Please visit my homepage: http://www.aidslifecycle.org/6010