Sync enabling an employee in SSSE giving unexpected results

Hi all

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We are getting ready to start sync enabling users in our production enviropnment with SSSE.  In preparation, I want to sync enable myself first to do some preliminary testing.  I only want to sync the calendar at first and at a later time, enable contact sync.  When I create a record for myself in the Sync Access Control->User Map, it automatically adds record enabling both contacts as well as tasks, and I cannot delete them as the option is grayed out.  We do not intend to sync tasks at all, and in the Siebel domain config, it is set to