Has anyone experienced problems with XOOPS websites when viewing them through the Opera browser?

The specific problem is that the site looks fine and for the most part works fine. But sometimes when you click a link multiple times in a row your page displays incorrectly. Like if I click the News link twice in a row from the main menu sometimes the page will display wrong, with the text scrunched to the side.

I have no ide what's causing this, but it seems to act only in Opera not IE6.