Hello Andreas, In a website, i can view something video with realplayer in windows, but when i view it with mozilla, the error message "This page contains informations of a type (audio/x-pn-realaudio-plugin) that can only be viewed with the appropriate Plug-in." occur. I can run RealPlayer 8 as a user, so i do not know why in that website i cannot use realplayer... Thank you for your help. Regard, James Ng