Thread:Project:Support desk/Save button does nothing under IE7, works fine in FF11

We've recently upgraded the server, software and other things on our Wiki server, and we have been getting reports of users using IE7 not being able to save any edits to any pages. I've tried it, and indeed, the save button simply does nothing. I've watched the system log while hitting the button and even used Wireshark to watch for network packets, and it simply goes nowhere.

Unfortunately, this is an internal only Wiki so I can't post the link.

Does anyone have any ideas as to what I could try?

Here's the rundown: