facebook on ichat problems

i've had my fb chat on ichat for a month now, but suddenly it stopped working and says my password or user is wrong... i've checked all the settings, pass and user and it all seems to be right.... btw, I havnt changed anything from when it worked until it didnt.

anyone knows what causes this?

Not sure what causes it, but try deleting the account and re-adding it to make a fresh start.

- Simon

still not working

All I can tell you is that mine is working fine ... have you checked that your FB account has not been hacked?

y.. my acc works fine and I can log on to my chat with a mobile app aswell