I tried to install yahoopops 0.7.3 on my FC3 system.
As a normal user I did ./ypinstall. The yahoopops were installed in home directory. I made no modification to yahoopopsrc.
Then I run ./yahoopops&

Then I tried to configure thunderbird.
localhost:5058 for pop server
localhost:5059 for smtp server

When I try to check for email thunderbird asks for a password. I give the yahoo pass but nothing happens. The yahoopops process is killed somehow (it is no more in the output of ps -ef)

Any idea?