i just bought 3 new laptop computers, 2 hp's and one toshiba, all with windows 7. i set up a wireless network using a netgear wnb2000 router. then i got a canon pixma 560 printer, and when that didnt work an hp c4795 printer. now the hp printers wont work. after spending 6 hours on the phone with hp support, they say its a windows 7 firewall issue that won't let my computers speak to the printer via the router. has anyone had this problem, and more importantly, does anyone know of a solution? thanks