rayder1 --- go to this site, and download and install the free PowerPoint Viewer ...
... it's fast and easy, and something you should have on your system anyway, as there are a lot of great PowerPoint Presentations out there these days ...
http://microsoft.com/downloads/details.aspx?FamilyId=D1649C22-B51F-4910-93FC-4CF2832D3342&displaylang=en