I have a new PC which I want to connect to the internet via my netcomm wireless router (i.e. 2 PCs through the same router). My old Pc is connected to the router via ethernet cable. The new Pc maual says it is equippped with WLAN, but I can't figure out how to connect it irelessly to the router. Am I being dense and I actually need a second router? I'm not confident to mess around with configuring my existing router....help!