Don,

Thanks for your response.  You are correct that we have chatted about CGM's.  I agree with you if it is off by 2 points no questions ask but not 20+.  

I'm beginning to think 1).  this CGM is a faulty mechanism; or 2). my body does not accept a strange mechanism.  Either way something is totally wrong.  Hopefully I hear back from Tech tomorrow (Wednesday) and we get to the bottom of this.

JofNile