Plugged my HP Deskjet 5400 into my DGL-4500, but can't figure out how to print to it. Tried printing from the one I used to use, which shows up as "HP Deskjet 5400 series" on the list, but it doesn't work. Also tried adding a new printer via the Control Panel, but the window that pops up to search for available printers freezes immediately and I can't X it out click cancel or anything and it doesn't search. Please help.