In the search box here, type in: font-size

You'll get this error:

Warning: require(sphinxapi.php) [function.require]: failed to open stream: No such file or directory in /home/forumsi/public_html/admin/sources/classes/search/engines/sphinx.php on line 86

Fatal error: require() [function.require]: Failed opening required 'sphinxapi.php' (include_path='/home/forumsi/public_html/ips_kernel/twitter/') in /home/forumsi/public_html/admin/sources/classes/search/engines/sphinx.php on line 86

It appears it has nothing to do with what word I type in, your obviously having a problem with the sphinx search full stop

working for me - probably just an update being done here :)

Working for me as well.

3DKiwi