noof works fine for me with a pair of 1600x1200 screens (3200x1200 root window) on an Nvidia e-GeForce FX 5700 Ultra.
The bug is in your video card or video driver, not noof or xscreensaver. ("Fine" means two copies of noof are started, one on each screen; they don't overlap or interfere with each other, and they are the proper aspect ratio.) -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]