After upgrading from 0.99 to 1.0RC1, the mail/news window is no longer functional. The relevant accounts appear in the left pane, but you cannot access them. Similarly, Mozilla does not ask for the POP username and you cannot check mail. The only thing to appear in the top right or bottom right pane is the generic "Welcome to mail/news" page. Standard widgets (i.e. get mail) provide visual feedback but do not execute their function. Top menus work and will call the appropriate function (i.e. preferences). Uninstalling and reinstalling mozilla 1.0RC1 did not help; however, reinstalling 0.99 restored mail/news functionality.
Reporter: Can you uninstall mozilla, delete all files that are not deleted by the uninstaller (but save your plugins folder) and reinstall ?
Uninstalling 0.99 bevor installing 1.0RC1 helps. The mail window responds as it should.
Thanks ! It's an installer bug.. *** This bug has been marked as a duplicate of 135017 ***