1.4b6 yahoo login problems

[firesign3000]

i've been having the infamous having to log on to yahoo's website before adium will log on problem for ages now. i was advised on twitter to try the latest beta because it has a new version of libpurple. installed 1.4b6 on two macbook pros, both running os 10.5.7. also cleared the yahoo entry from the keychain first. no joy. now, instead of getting the "logging into yahoo's site may help this problem" error , i get "account locked, too many login attempts". logging in to yahoos site first lets me log on as usual. this has gotten very frustrating. any ideas? i tried searching the forums but i haven't seen any posts with this problem for this version.

[emanmb]

I can confirm this issue in 1.3.5, the newest version.