I was creating/editing a page in Rich Text mode on the wiki and I wanted to insert a link. I clicked on the "Insert/Edit Link" icon and the Link Properties window opened. However, no matter what I typed in the "Link" and "Alias" fields, when I clicked on either the OK or Cancel buttons, nothing happened. The Link Properties window remained open and nothing changed on the page that I was editing.

I asked a couple of other users to try it on their computers and they had the same experience.