I have got Acrobat Reader 8 and Acrobat 5 installed on my system. I have configured it so all my PDFs open with Acrobat Readeer 8 but when I am opening a PDF from a website they always seem to open with Acrobat 5.
I have disabled Web Browser Opening in Acrobat 5 from
Edit --> Preferences --> General --> Options -->Web Browser Options
Yet they seem to open with Acrobat 5, I am thinking there might be a Registry setting that needs to be changed.