Suddenly, when I open a Word document file, I get a message that the
hyphenation files "mshyph2.dll" and "mshy32.dll" cannot be found. I can't
find them on the Office (Professional) CD nor in Explorer. I did find the
"MSHYPH2.DLL" file and copied it to the Office folder, but that didn't change
anything.

So I can't hyphenate. Which I badly need to do.

I also tried repairing, and that didn't change anything.

Only thing I can think of is to re-install. Should I and if so, should I
install over the existing installation?