I work in a public library. We have Reader X installed on the public machines. Occasionally we are getting reports that patrons are either unable to open W-2's from their employer or they are getting a prompt to install Adobe Reader. I've checked several public machines at random and opened various pdf files online. Unfortunately I hear about the issues well after the patron is gone and the librarians don't know what websites the patrons are visiting. Does anyone have any suggestions? Is this some sort of registry bug?