Why is OS X's scanner support so terrible? I borrowed an HP PSC 1410v all-in-one unit to scan a bunch of photos for a project, but I can't get it to scan! I downloaded all the HP drivers and utilities and rebooted, and it says it can't find the scanner. I also tried the VueScan demo and couldn't get it to work there either. The scanner works fine when connected to my friends PC... why won't OS X connect to it? Anyone else have better luck with the HP scanners?