Hi I had the same probelm with my desktop and my d-link modem router. however i've just fixed it by
1) Open internet browser and type in the ip address for your router this should take you to the setup.
2)In the "wireless setup" section I changed security mode to "auto (WAP or WAP2)" and in the box marked "WAP MODE" I selected "personal"
3) Applied the settings. and did a reboot of the router.
4) what happend next, (the same my not happen to you but..)
at first this caused problem with windows live messenger, and then my internet went off, but with another router reboot followed by physical reboot the on and off switch, all is fine. A system error occorred on my pc, and it just rebooted.
Everything now works fine and no need to use the View wirless Network window.
Hope this works for you as well,
Jonathan
JP