cannot see text in boxes in the tool bar all office 2007 products

C

cookie

In the boxes in the tool bar I cannot see the text (eg font size). Or when I
close a document and the pop up window asks "do you want to save change" the
three little boxes that are shown do not have text in them, but will respond
the right way when clicked. they are supposed to have the following text
YES, NO, CANCEL, but I cannot see the text.
 
Top