When I make one word bold, the whole document gets to be bold, an undo leaves
the only the intended word bold... word 2003, no updates required.
I checked with some other users, they have experienced this too sometimes,
is this a reported bug?

In a long doc, with limited memory, it can take forever... what is the
solution?
Working in normal view uses less memory, that helped speeding oit up, but
still, it does not work how it should.... corrupted doc? No I copied and
pasted into a new doc with patse special unformatted text... still
happens.... Help