I suppose the best thing to do with the Huey in use is to hang it from the top. I presume the XL20 is still basically an LCD, so I have to be careful about not pressing too hard on the screen. I am a bit worried that if the Huey hangs loosely, ambient light will interfere some with the readings, or the sensor won't point directly at the screen.. Any suggestions about avoiding that? P.S. I finally found the information about udev on the Argyll website. It suggests /sbin/udevtrigger, /sbin/udevcontrol reload_rules or /sbin/udevstart to restart udev after adding or changing a rule. But I have no such programs on my Fedora 9 system. I believe /sbin/service udev-post reload or perhaps /sbin/udevadm control --reload_rules may work. (I just rebooted, so I didn't try either of those.) -- Leonard Evens <len@xxxxxxxxxxxxxxxxxxxxx> Mathematics Department, Northwestern University