Office 2010 Protected mode messes with editing

Hi,

So I have Office 2010 x64 running on Windows 7 x64. I was able to get Confluence working by moving it to an HTTPS URL. Yay!

There is a bug, however. If you edit a document, it first opens in 'Protected mode' in office. You can click 'Enable editing', and edit the document. But when you click save, it says that there was an error transmitting it to the server. It's actually transmitted successfully to Confluence – for some reason it just says there's an error.

I found a workaround though – if you disable Protected mode in the Office Trust Center, then it works flawlessly.