Daisy,

This problem should be supported by an IRM expert/development team in
Microsoft.
They should know exactly what we're talking about if they read the
articles in this newsgroup.
I can't believe people can't get a proper support from Microsoft for
the critical problems like this caused by Microsoft for almost 1
week.
Would Microsoft start taking an action if this issue comes up on the
news next to the Windows 7 commercial?

By the way, you can simply try to use IRM service for your excel
document through putting "restrict access" function on it, then you'll
understand what it is.

Thanks,
Steve