What I'm trying to do is this: i want to remove the read permission to the group "EvereyOne" because i want the default behavior being "you can see only what i told you can see"
So, I've removed the Read permission to Everyone on the root repository Node.
This create two problems for users without read permission on the "Company home > Sites" folder:
1) user now cannot remove dashlet from they dashboard (instead he can add a new dashlet)
2) new users cannot remove the initial "welcome/help" yellow box on the dashboard
Setting read permission to EveryOne back on the "Company home > Sites" folder solves this problems
Is the problem more clear?
PS: I'm using Alfresco 4.0.e