Missing parameter in command PASS???

Ok. Curious as to what this might mean. Received a logon account for a server and was told there was no password necessary. I set up/enter in the info necessary, hit "connect" and get this (I've "x'd" out the IP and port #'s):

Connecting to (xx.xxx.xx.xxx).
Connected to (CPE0004e24a15bf-CM014500113892.cpe.net.cable.rogers.com) -> IP: xx.xxx.xxx.xx PORT: xxx.
Socket connected waiting for login sequence.
220 Dave's ftp ready
USER jkotsonas
331 User name okay, Need password.
PASS (hidden)
501 Missing parameter in command PASS

Is the last line just indicating that all slots are full? I've never seen that one before.

Thanks in advance for any/all help!

-jim

Try using a fake email adress as password.

Thanks for the reply. Tried using 2 diff email addy's, but w/ that inserted as a password, I get a "Password not accepted" error message.