Any waiver by either Party of a breach of any provision of this Agreement shall not operate as or be construed to be a waiver of any other breach of such provision or of any breach of any other provision of this Agreement.  The failure of a Party to insist upon strict adherence to any term of this Agreement on one or more occasions shall neither be considered a waiver nor deprive that Party of any right thereafter to insist upon strict adherence to that term or any other term of this Agreement.  Any waiver must be in writing and signed by the Party to be charged therewith.