copy command is copying image of screen

Microsoft Office Word

When I copy/paste in Word 2002, it is copying an image of my screen instead
of the text I have highlighted. Also, my clipboard is full of these images
and they will not delete. When I try to delete them individually or click
on "clear all" they delete for a split second and then reappear.
Very strange! I would start by troubleshooting Word:
~Anne Troy