Hi Syziph

It seems like there is something that can go wrong with an IE7 upgrade that causes this problem as a side effect. It doesn't happen often, you are the 3rd or 4th person to run into it.

It can be solved by doing a reset of IE7 settings.

To do this, go to IE7 Tools menu, Internet Options, Advanced Tab and click on the Reset button near the bottom of the page. Here is a blog post that shows this: http://blogs.msdn.com/ie/archive/2006/06/12/628499.aspx

MoI should work fine once you do the reset, please let me know if you have any problems after that.

- Michael

Thanks Michael,
Resetting IE to defaults worked!
I'm sorry for the late reply and for repeating the question (I couldn't find similar topic, or haven't used appropriate keywords).