Brand new Lenovo T61 replacing my T42, both running XP. The old computer has no problem accessing my network thru wifi. The new computer accesses the network OK with wired connection, but refuses to authenticate wireless connection. I enter WPA-PSK passphrase, but it doesn't connect and seems to forget it right away. I tried disabling Norton IS, but that doesn't seem to help. I am using the Lenovo wireless configuration utility, but i can't get it to connect. What should I do?