Can't read symbols in Word document

Hi to all,

I'm using the Office Student and Teacher Edition 2003. However, when I'm
viewing my schoolwork on Word, some symbols do not come out correctly. For
example, the "proportional" symbols turns out to be a camera. I tried to
solve the problem, the the Office Installer said that the programme does not
have the file SKU112.CAB. When I explored my installation disc, the
SKU112.CAB file was there. I am totally lost about what to do to solve my
problem. Any one can help me out with this?
.