Where's my spell checker?

While working on an EPiServer proposal for a client today, the client had a requirement that the CMS must have a spell checker built into the WYSIWYG editor. Fair enough. Feeling fairly certain that it would, I thought I'd just check that it supported multiple dictionaries. To my surprise, there was no spell check icon in the editor! For some reason it seems to have been removed by EPiServer when they integrated TinyMCE.

Thankfully, Ben Edwards has shown how to add the TinyMCE spell checker back in.