I have a IOGear print server (1-port usb 2.0) connect to a DSL router/modem.  The print server configured correctly, I have a IP address but when I send a test page to the printer is does not print.  I do get the screen telling the percentage of the printing has to go and the print queue shows the document but then it just vanishes.  Has anyone tried using this device with a DELL XPS running Vista Ultimate and a DELL 948.