Don't really need help, but I found something (MS Word 2002)

[CrystalGlacia]

If you try to save a document while that little book icon down below is still writing, the entire program will freeze.

I'm not sure if this is true for other versions, but I thought I'd share this.

 

[Kavidun]

Doesn't happen with Word 2000, just to say.

 

[Soulweaver]

Not with MS Word 2010 either.