ob_start error

[Taranis]

When I first view my Wordpress installation, I see this error: Warning: ob_start(): output handler 'ob_gzhandler' cannot be used after 'URL-Rewriter' in /home/spitting/public_html/wp-includes/functions.php on line 558

[Taranis]

After a little more testing, I noticed that the error only appears once per browsing session. So, in Firefox, once I view the site with the error, all subsequent viewings have NO error.

If I shutdown the browser and then restart it and visit the site, the error is there. Cookie-related perhaps?

Here's a link to the site in case it might help: ​http://www.spittingllamas.com

[MC_incubus]

Add this line to your .htaccess file:

php_flag session.use_trans_sid off

Or alternatively, put this at the top of your index.php file:

ini_set('session.use_trans_sid', false);

See here: ​http://weblogtoolscollection.com/archives/2004/07/31/gzip-compression-issue-in-wordpress-12-mingus/