I've got a Tibook 550 in a lab with a dual 450 G4, and an HP 4000J printer. Both machines see the printer on the appletalk network and seem to connect just fine. Printing works from the tower, but printing from the Tibook only works if I select the printer from the shared list, not directly. This means that the tower has to be awake for me to print and this can get annoying. The wierd thing is that I don't get any error message when I send something to the printer from the Tibook. From here it all looks good, but when I walk over to the printer, nothing is happening.