Windows xp cannot connect my wireless card

Hello,
i have been having a most stressful time trying to figure out what this problem is: i cant connect to the net via my wirless card (toshiba tecra 8200 mini lan card) i can connect via a external wireless adapter,and also by the lan local adpater but the wireless does not want to know i have tried every thing including updating the bios,drivers, wpa2, pinging the adresses reseting the hub, etc etc, reseting the winsock, and still nothing, i suspect it might be a problem with the o/s as all the diagnostics i have run say nothing wrong with wireless card and it can see all the wireless connections in range but stubbornly refuses to connect! i have been at this for a week now and no closer to a solution!! please can some one help me to resolve
this most awkward problem.
ps.
i get error message saying :your computer is unable to detect the wirless network name broadcast by your hub!