I'm on a Mac OSX 10.7 and I have been opening pdfs for years. I noticed I had about several acrobat readers 7,0 and 9 so I deleted some. The next thing I knew was when I opened a pdf I got a message to re-install acrobat reader. I did that and then I got a message to uninstall and reinstall reader.
Should I trash all my readers in applications and reinstall and which version do I install?
Gary