From the department's STAT 515 page:


If your graphs print out extremely small after you copy them to Word, you might be able to 
fix the problem by "opening and closing" the image. In word, left click once on the image, 
and select Edit Picture or Open Picture Object  under the Edit menu. A separate window will 
open with the image in it. Simply choose Close Picture. It should now print out ok. This 
will also make the spacing between the characters in the labels look right if they were 
somewhat off.