Unable to print from Internet Explorer
From TSG Library of Knowledge
Problem: When you tell Internet Explorer to print a page, it appears to send the document to the printer, but nothing actually prints (and no error message appears).
Solution: Although Grisoft has not acknowledged this problem (as of May 19 2008), many users have reported this problem after upgrading to AVG 8. The only solution I've found so far is to uninstall AVG 8 and reinstall AVG 7.5. You can download it from FileHippo.
It may be useful to note that this problem seems to be more common with users running Windows Vista.

