like i said... PC guys get out. this is OS X
ok 2 things to download...
1. just download this thing for your screen saver preference, it just lets you have a movie play as ur screensaver
http://www.apple.com/downloads/macosx/icons_screensavers/savehollywood.html
2. then this little app for your dock. it switches ur desktop to ur screensaver... which is a movie cuz of the save hollywood thing u just downloaded or read about...
http://www.apple.com/downloads/macosx/icons_screensavers/magicdesktopswitch.html
and one tip, to make it a ski movie background, set the movie for the save hollywood player to be a ski movie.. which you bought legally. right.
k, pm if u have questions but it seems pretty simple.
and im running 10.5.8 if that matters to any of u. i think it works for snow but im not sure...
yeah.