Smart Ftp v.2 not working

I have been using Smart FTP for over a year and recently switched to v.2. However, it just will not connect to any of my servers! I have about 4 ftp accounts all on seperate servers so its not a problem with the hosting companies. All I get is this...

[13:35:24] SmartFTP v2.0.996.43
[13:35:24] Resolving host name ""
[13:35:24] Connecting to Port: 21
[13:35:24] No connection could be made because the target machine actively refused it.
[13:35:24] Cannot login waiting to retry (30s)...

As you can see, the whole action occurs in the same second so I assume there is a problem with SmartFTP rather than anything else. Has anyone seen this before? All passwords and logins etc are correct! Thankyou in advance.