Adobe Reader 7 just automaticaly updated itself the other day and now seems slower. I also noticed that my computer still has Reader 5 with 0mb, Reader 6 with 13mb and of course Reader 7 with 87mb on it. On Adobe's site I see that Reader 8 is available. My question is if I download Reader 8 am I still going to have all those previous files with little or no content in them? Or can I Delete all my existing Rreader files and clean download bersion 8? If I do this will I risk loosing any of my own pdf documents that are on my computer?