Forum:Internet Explorer view bugs

Hello, I'm not a fan of IE so I actually never use it, but when I tried to view a page with IE9 I noticed some differences between it and firefox: if you try to open this page both in IE9 and firefox you will see that in IE the first column of the infoboxes is a bit compressed (only in the infoboxes with a long list) while it's look normal in firefox. The column width is set in the template boxriga, in the default case, as 10.5em. Another problem is that I cannot figure out why in the wiki activity module in the siderail another inner box is created while there isn't in firefox. The css customization are the following: which you can find them in Wikia.css.