Shoutbox

Hey everybody! I wonder if anyone could help me: i´ve instaled stuffplug ng, but never could get my pictures over-sized! did everything, even uninstall and install again, but nothing. When i change the picture, the question about the size appears, to wich i say yes, but nothing happens. I know i can´t see it, but my contacts using plus and this plugin say it´s still small. The "enable over-sized display pictures" is also on, in the  NG options box. Is there another plugin maybe in conflit with this?! What can i do to solve this?...Thank you for the attention!