[otrs] Problems with mod_perl

Hi, my OTRS v2.1.4 runs * under SuSE 9.3 Prof * with Apache v1.3.34 (self-compiled) * with mod_perl v1.29 (self-compiled, I don't know a newer version) * in UTF8-mode with MySQL 4.1 and ArticleStorageFS I have the problem that * Attachments received by mail and downloaded within the agent-gui are corrupted * PDF-printings of ticket-zooms are corrupted BUT ONLY when I use mod_perl. When I run OTRS on CGI, all works fine! Are there any problems known in teamplaying of the above mentioned software-versions? (I want to use mod_perl because of great performance enhancement.) I appreciate every hint. Bye, Alex