PHP Error in Floating Social


When I have the floating social plugin activated and try and view the main post list, it fails to load and Im getting the following php error in my apache log file:

PHP Fatal error: ob_start() [ref.outcontrol]: Cannot use output buffering in output buffering display handlers in /var/www/schblogs/wp-content/plugins/floating-social/lib/class_wdsb_public_pages.php on line 93

I've only got a basic knowledge of php but a quick google of the error seemed to indicate it was something related to compression. Which I do have enabled on my webserver (mod_deflate in httpd.conf).