I just set up 1.7 version in my website. I'm on php 5.3 but I do have that message :
Warning: ob_start() [ref.outcontrol]: output handler 'ob_gzhandler' conflicts with 'zlib output compression' in /home/u924205102/public_html/qa-include/qa-index.php on line 170
As explained in that forum I turn off html compilation in the config file but I stil have that message
you can have a look in my website : http://questions2musculation.com/
Anykind of help will be much appreciated.