[otrs] pop3 problems

Hope someone can help with the following pop3 problems: When I started pop3 downloads using PostMasterPOP3.pl, I get the following error: Notice: PostMasterPOP3.pl is already running (use '-f 1' if you want to start it forced)! I tried the suggestions found on the maillist (-f option, delete from process_id), but nothing helped. When I use -f 1 it actually downloads the same message again thus creating a new ticket for the same email. But for that email I get another error too: Wide character in subroutine entry at (eval 81) line 1. Notice: PostMasterPOP3.pl is already running but is starting again! Anyone any hints on how to proceed? (OTRS 2.2.2, ITSM 1.0.2, FreeBSD 6.2, Mysql 5.0) Thanks! /florus