Shoutbox

the only way to make sure it is the plugins is 2 remove all the plugins and see if ur problem still remains

if it duz its nuthing to do with da plugins
if it is gone then install one plugin and then check if u have the problem
if u do its that plugin
if u dont install another plugin and keep doing this until you discover the culprit

EDIT: at a guess i would say it was stuffplug or handwriting