I added a new Page to our wiki and it includes a number of numbered lists and some code blocks inline of those lists.

When I tried to preview, it hung and didn't allow me to continue editing. I had to retrieve the Page from drafts to continue editing.

I then saved the Page and then tried to view it. It crashes the whole tab and sometimes the whole of Internet Explorer. I am unable to edit the Page because I can't get that far. And I have basically lost a whole Page until I can get around this problem.