i faced one issue, that the user in MS CRM is unable to log in, its showing you do not have sufficient permission to view these records.
Even if the user is in enabled list.
i also can disable and enable the user, still the user cud not logged in.
May be the user has been deleted from the AD and after that again created.
What i did is, i just opened the user in crm , then i changed the same to another user, which is not in ms crm, suppose a temp user.
Then i tried to log in using the temp user, i am able to login.
Then what i did is, i swaped back from temp user to the actual user.
Then the actual user was able to login.
hope this will help somebody really...