PHP Warning on Fresh Install After Pagelines

[buzzdeep 0]

Warning: preg_replace() [function.preg-replace]: Compilation failed: unknown option bit(s) set at offset -1 in /home/adcom/public_html/wp-includes/shortcodes.php on line 257 I am getting these messages as soon as I enabled Pagelines. If I disable the theme, it works fine. What could be the problem?

[Danny+ 1,327]

Hi, Do you know what version of PHP you have on your server ?