Dovecot error?

[John Fleming]

FC2/Dovecot:  Usually when I check my pop mail remotely using Outlook
Express, everything goes just fine.  However, about 1/4 of the time, after I
have all the mail, I get the error below.  Then when I get my mail the next
time, I discover that the mail is still on the server, and I get another
copy.  On this second attempt, there will be no error, and the msgs are
removed from the server.  Note that it's an intermittent problem - other
times it will simply work as expected the first time.  Any ideas?  Tnx -
John

The server responded with an error. Account: 'john at wa9als.com', Server:
'wa9als.com', Protocol: POP3, Server Response: '-ERR Internal error
[2004-05-24 07:02:29]', Port: 110, Secure(SSL): No, Server Error:
0x800CCC90, Error Number: 0x800CCC90