I have just reinstalled Windows Vista after a viral attack and now have reinstalled all my programs including Adobe Reader. I now can't print a pdf document. the error message tells me to install a printer, but my HP photosmart printer works fine with other programs, and used to print from earlier versions of Adobe Acrobat. Having read what other people have said I uninstalled Adobe 9 and installed Adobe 8. Still can't print. Can anyone help on this one?