HarryPotterRules1 wrote: This is the only site that it doesn't work on; all the others work.
What do you mean by "it"? The VisualEditor? If so, be aware that most Wikia sites don't have VisualEditor enabled at all, so it's unlikely that you're comparing apples to apples. As Ohmyn0 has pointed out, VisualEditor simply does not work with Internet Explorer. We recommend that you download and use Chrome, Firefox or Safari.