Except for waivers specifically provided for in this Agreement, rights under this Agreement may not be waived except by an instrument in writing signed by the Party to be charged with the waiver.  No waiver of, or consent to a change in or modification of, any of the provisions of this Agreement shall be deemed or shall constitute a waiver of, or consent to a change in or modification, other provisions hereof (whether or not similar), nor shall such waiver constitute a continuing waiver unless otherwise expressly provided.