Here are two screen savers I made to day from some backgrounds I found online.
They have moving water and one has falling snow.
They are virus free as I made them.
http://www.mediafire.com/?rnyrn96cudj
http://www.mediafire.com/?ygxcbyzdrw9
One is a lake and the other one is a iceberg .
Don't remember what download is what so you have to grab both. lol
They don't have installers so just put them in the system32 and they will be ready to use.