I am trying to update SSL settings in Site Settings >> Advanced Settings.
When I check the 2 SSL boxes (SSL enabled and SSL enforced) and then come back to them, they don't stay checked.

I get conflicting results depending upon whether I view in IE8 or Firefox. This is whats happening now in IE and Firefox:

e.g.
Firefox - this happens:
SSL -  is unchecked
Secure pages work OK (https is displayed and htttp pages consequently display ok too)

IE8 - this happens:
SSL -  is checked
Secure pages display the security message (IE 8 Security Warning – Do you want to view only the webpage content that was delivered securely?)
 

Just to clarify, I am selecting update and there is nobody else changing the settings).
We have also just moved to a new server, created a new db and everything seemed ok before the move.
 

I have also noticed a delay in updating other settings too, such as:
*  Form n List module - 'tracking and notifcation' message not updating straigt away.
*  Repository settings - location of folders for approved files etc

We are running    DNN v5.1.1    |    SQL 2000    |    .NET 3.5     
thanks,
Mark.