preg match error

[mindhunter77]

2009-04-26 17:58:23: (mod_fastcgi.c.2592) FastCGI-stderr: PHP Warning: preg_match() [<a href='function.preg-match'>function.preg-match</a>]: Unknown modifier '4' in /www/vhosts/xxxxxxxxxxxxx.com/htdocs/forum/global.php(243) : eval()'d code on line 29

Anyone have any idea what this is or where I can start researching to figure it out? I'm getting a ton of these in my error log.

[TigerC10]

It's probably one of the addon modifications you've installed. Unfortunatly, there's no telling which one it could be. Just disable your modifications one at a time until the error goes away - then find the modification's thread and ask there.