We have developed 4 applications in APEX 4.1. They are all connected, that is when you login into one of them you set a cookie that allows you to go to the other applications. Now, we've upgraded APEX to the new 4.2.1 version. Everything works great with all browsers but IE8 (even works with IE7 :) ). In IE8, when you login into the application(s) every mouse click causes a logout from the application(s). It seems that the session is not valid, but why only in IE8?