session trans_sid and ob_start("ob_gzhandler")

Hi, i have a problem with sessions. I use the trans_sid ('couse i don't like cookies) and everything worked fine... but when i insert ob_start("ob_gzhandler") to my script, to compress the output, the URLs don't get rewrited. Has anyone a suggestion for this prob? I have the entire of the output in a variable to rewrite something in it via regex, maybe someone has a regex for rewriting local links with the session-tag. Thanks, Thomas 'Neo' Weber --- thomas@youngarts.org neo@gothic-chat.de