Email error_log and upgrade process?

[netgroup]

Hi,
OK, I'm using 3.00.32 and have been for over a year now. I've been reluctant to upgrade as it took ages to get this configured and working with my modernbill setup. However, I've had a growing number of customers complain of no response to support emails.

Checking my error_log (for the first time), I'm horrified to see a plethora of similar errors dating back to the beginning of 2006.

This is the error:
[18-Dec-2006 12:01:23] PHP Warning: imap_open() [<a href='function.imap-open'>function.imap-open</a>]: Couldn't open stream {mail.mysite.com:110/pop3/notls}INBOX in /home/mysite/public_html/billing/support/modules/parser/cron_parser.php on line 82

1) Any idea what I need to do to fix this?
2) Using 3.00.32 is there a simple way to upgrade to the latest version (and will that fix things), or am I faced with a nightmare to try and do a fresh install, reconfigure again and bring the existing database across?

Any help/guidance appreciated.

[Racked Hosting]

First of all upgrading is fairly easy. It's all done automatically. Don't worry!

Your problem seems to be with the Mail Parser settings. Have the settings worked previously?

[supportskins]

Re-check your POP3 account settings, they seem to be incorrect causing the error.

[netgroup]

Ok, I've now been getting mails looped on the mailserver.

When people (non-customers) have been emailing the support@mydomain.com, if they don't have a registered email address on the modernbill/kayako system, they receive an email back telling them they need to be registered customers and that their support email has not reached us.

Problem is, the emails were looping somehow and on the mailserver they were showing up as coming from support@mydomain.com and going to support@mydomain.com

We were advised to create a normal user on the account with the email address support@mydomain.com. This worked. At least it solved the looping mail queue on the mailserver, but now, there are thousands of tickets being created with the heading:

"Activation Required: Unable to Create Support Ticket"

Something somewhere is wrong in my settings but I don't know where.

I have 2 staff:

1 is using support@mydomain.com
1 is using accounts@mydomain.com

There is a queue for each.

There are 10 depts. accounts@mydomain.com emails go to the 'Accounts' dept. Do I need to make all of the others accept support@mydomain.com or just 1 of them.

Can anyone guide me here please?

Thanks