I have had an on again off again problem installing and running Reader and Pro 9 (and other versions) on the same machine at the same time. My users and desktop support people report spurious errors but nothing that can be identified. The desktop person chooses to uninstall both products then only reinstall the version of Pro on the machine. Has anyone experiance any problems with the two programs living on the same machine? I can find artical's referring to multiple versions of these programs causing problems as the versions creates various issues but I can not find anything regarding keeping both the generic reader and full pro versions apart.