HELP with lost wireless connection, Hp dv5 laptop and windows vista

sorry if this is a re-post but u have been looking for weeks trying to figure this out..
fist of all im not amazing with computers but i do know a few things so if you could explain clearly with any help that would be great...

ok so i have lost my wireless connections on my hp-dv5 1000 laptop.. about a month ago i was able to pick up various wireless networks in my home including my belkin connection. now the only way i can connect is wired.
when i click start and connect to it says windows cannont find any connections. (when other computers in my house can)

i have gone to device manager an updated my athereos AR5007 802.11b/g wifi adapter so its fully up to date.

i also emailed hp and they said i should update my bios which i did and still no connections...

any ongoing help would be appreciated.
thanks

 

so your wifi adapter is still listed in the device manager and there are no yellow ! or ? symbols on it?

Do you have a switch on the front of the laptop or a button that turns wifi on and off? I know it's a silly question, but I've had more than one person say they didn't know what that switch was for.

 

yes i have my wi/fi turned on. and threre are no yellow marks to say there is something wrong with the adapter. i recently updated it too.