Is there anyway of checking (Using software preferably) whether your GPOs are conflicting? I have about 7 GPOs running on our Pupils OUs. I'm am suffering with Synchronized files. I've checked the Users GPOs and they all say Not Configured except for the immediate Pupil Year 7 gpo that states they are enabled/disabled respectively. When you block policy inheritance this GPO works but otherwise you still get sync'd files!

Any help would be much appreciated.

Okay so I've run the GPO modelling wizard and in the report/settings tab the winning GPO is stated as Pupil Year 7 GPO which is the one with the correct sync settings but still it is synchronizing!