I'm trying to connect a Canon i9900 to my Mac Pro (Penryn) using a Linksys PSUS4 USB print server. I have tried via IP and via AppleTalk, both with no luck -- the IP queue pauses when a test page is sent and the AppleTalk queue test page seems to go through, but never prints. Surprisingly, I have my PC printing through the Psus4 fine, but can't seem to set up my Macs right. I'm using a Linksys router and have two Macs and a PC connected (in addtion to the Psus4). Any tips?