Is it reproducible with simple page? something like:
<?php
echo "Hello, world!\n";
?>
i tried some situations but in my case all works fine. on other machine same cms with same page shows up correctly. (same rpms installed)
problem seems to be outputbuffering: index.php of sefrengo does in line 37 ob_start()
if i deactivate this line page works correctly.
next is line 433 in index.php of sefrengo, there is a eval();
if ob_start in line 37 is active but this line gets deactivated the page also works ok.
the eval in this case evaluates an "echo $output". $output contains a html-div, some text etc. which is modifying main-html
in 5.2.10 complete page is outputed twice, returning to 5.2.9 page is ok
Also, you can ask your CMS's authors if they know about this problem
i think problem is unknown but will ask there.
maybe we succeed to isolate problem.
Thanks,
Andre