Thunderbird hanging on imap server?

[blu_discuss at seremeth.com (Steve Seremeth)]

John Abreau wrote:

>I've got a user who's having problems with Thunderbird on XP, talking
>to our Courier IMAP server on CentOS. It's been working fine for her
>for months, but in the past few days it's been getting stuck trying to
>load the first message. I connected to her machine with vnc to see what
>was happening, and I've found that it basically can't open any
>messages; I clicked on several messages in her inbox, and in each case
>it would sit there forever trying to retrieve the message. It had no
>problem retrieving the headers, or notifying when new mail arrived; it
>just can't open the actual messages themselves. 
>
>Rebooting didn't clear up the problem. I tried reinstalling
>thunderbird, going from 1.0.2 to 1.0.6, but that didn't change the
>behavior. I tried  Outlook for comparison, and Outlook had no 
>difficulties reading the messages. I disabled all extensions in
>thunderbird, and still the problem persists. 
>
>What else can I try? I just spent about an hour on google, but so far I
>haven't found any matches for this problem. 
>  
>
I had some similar issues and after I tunneled the imap over ssh to the 
remote server in putty, it worked fine.  I chalked it up to problems 
with our new adsl line in my office.

Steve