I have a Linksys router connected to a cable modem.  I can access the internet from a PC (wired) and from an IBM laptop and a Tivo (both wireless).  My Dell Inspiron can connect when it's wired to the router, but it says no wireless network found in range when I try to connect wirelessly, even though I'm only a few feet away from the router.  My firewalls are turned off.  Could the internal wireless adaptor in the Dell be disabled? Any other ideas? Thanks for any help that can be offered.