When I try to add a new annoucement listed via "Add new announcement" link in the "Content Owner Menu" via the JOOMLA's front end, sometimes, the "Submit an Article" editor page displays properly, but when I try to type something, the editor page turns to blank; sometime the "Submit an article" editor page shows blank.The same function works fine in Firefox, but when I test it in IE7, the above issue shows up.
I forget to mention the template I used is Versatility 4.