I've recently downloaded and installed Y!M 8 and 9(both because 9 is still beta).
After installation,I try to log in but all I got is this message:
"Connection error, please try again(81003004)".
Then I tried login to my mail and it still worked fine.
my internet connection is dsl btw.
oh and I downloaded the full installer,not the installer from yahoo.com that will DL the installer again.