[Dovecot] Sieve stopped working

[Ben Versang]

Hi,
 
I have installed RoundCube a couple of years ago on a Snow Leopard server. All nice and dandy up to today.
 
Sieve has stopped working and I have spent hours and been unable so far to get it up and running again.
 
When I run ps aux |grep sieve it is not returning anything to me suggesting that the problem is not with sieve it-self but rather with Dovecot not starting the sieve.
 
If anyone could give me some leads I can't think of anyting else.
 
netstat -a |grep 2000 returns
returns nothing
 
telnet localhost 2000
Trying ::1...
telnet: connect to address ::1: Connection refused
Trying fe80::1...
telnet: connect to address fe80::1: Connection refused
Trying 127.0.0.1...
telnet: connect to address 127.0.0.1: Connection refused
telnet: Unable to connect to remote host
 
The rest of mail functions are working fine (IMAP, SMTP...).
 
Thanks in advance
Ben