You said someone else has a wireless access point around you, as you can
see their WLAN. That should indicate that the card works fine and that
it can connect...
You also mentioned that you tried a lot of things on the computer ...
What did you do on your access point? Since there's another WAP around
somewhere, did you try simply changing the channel your WAP uses? Try to
change it to either a high or low channel (1,2 10,11), and see if that
changes anything for you. Consider enabling SSID broadcasts (if you've
disabled it) during troubleshooting, and also tripple-check your
encryption keys, even consider not using encryption while
troubleshooting...
Lars M. Hansen
http://www.hansenonline.net
(replace 'badnews' with 'news' in e-mail address)