Thread:Project:Support desk/viewing image requires login after locking down * read to false

Greetings, does anyone know how to solve this? I changed True to False on this line $wgGroupPermissions['*']['read']            = false; and now when I go to click on an image in the File List I get "login required" for jpg, png, but not doc or txt files. the link has www.mywiki.com/index.php/File:Gilt_03012011_i.png