Hello,
I found possible bug in catmgr.php rev. 1.11 line 27 with the call of
ob_end_flush();
This call send the output buffer to user agent, preventing pageheader (line 364) from sending additional HTTP headers.
I noticed this using UFT-8 charset configured gallery.
regards
Pat.
commented the code out, as it really doesn't do anything particularly helpful at that point. Comitted to stable and devel branch. Will go into cpg1.4.6