Malformed UTF-8 character error


I am currently trying to correct a problem with accented characters
(iso-8859-1) that display
garbled received emails and also in tickets created with the web
interface and I found this in the
our rt3-3.0.7 Apache (apache+mod_ssl-1.3.29+2.8.16) server httpd-error.log:

[Fri Dec 5 09:01:46 2003] [error] [client] FastCGI: server
"/usr/local/rt3/bin/mason_handler.fcgi" stderr: Malformed UTF-8
character (unexpected non-continuation byte 0x73, immediately after
start byte 0xf3) in substitution iterator at
/usr/local/lib/perl5/site_perl/5.8.1/Devel/ line 290.

[Fri Dec 5 09:03:47 2003] [error] [client] FastCGI: server
"/usr/local/rt3/bin/mason_handler.fcgi" stderr: Use of uninitialized
value in concatenation (.) or string at
/usr/local/rt3/lib/RT/ line 336.

Other related info: perl-5.8.1_2 , mysql-server-4.0.16 ,
mod_fastcgi-2.4.0 , p5-FastCGI-0.67 ,,1 ,
fcgi-devkit-2.4.0 , p5-MIME-Tools-5.411a_3,1 , p5-MIME-Base64-2.21

Has anyone seen errors like these?