CMS Aricle images not appearing after upgrade to 4.04
 

I'm starting to regret this upgrade its caused a vast amount of problems with our site and is taking hours to work though!

Anyway after the upgrade to 4.04 we now get images not displaying in article preview and on article view in some articles the images appear as a text link. The frequency of this fault depends on if you are logged in or not. I as admin can see 90% of the images but when not logged in only 10% of the images seem to show correctly

Is this a permission setting somewhere or a bug with the upgrade?