Keeps aborting

Hello,

whenever I am in the middle of downloading a file, the file keeps aborting by itself: here is the message I get:

Connection closed. Timeout (20s).
ABOR
426 Cannot retrieve. Failed. Aborting
226 ABOR command successful.
NOOP
200 NOOP command successful.


Passive Mode is on, Binary is on. I am pretty sure its not my firewall (Norton Security 2005)

I am fairly new to the whole FTP scene, so I may be doing something wrong..

Use the global queue for downloads, then SmartFTP should automatically resume in case of an error.