We normally use thunderbird and have no problems usually. We've just changed isp to o2 (UK company). We tried to update the settings but emails not working, keeps coming up as name or password not recognised even though it will randomly come back with a test email we've sent. Rang o2 who were non the wiser. Tried to run 'mail' to see if we could just use that. the icon's there but nothing happens when you click it? Tried to 'uninstall' thunderbird, mail still didn't work. Tried reinstalling thunderbird and thunderbird still didn't work. Apart from throwing it all out of the window (3 hours and counting so far), does anyone have any suggestions please?