What does being in a study have to do with tech support? I would call back and tell them that it just isn't working properly. Don't even mention the study. Then again, I don't know why they wouldn't help you. Do these people realize that we absolutely depend on these devices for any kind of quality of life? When I call for tech support for the eflow, (no matter what the problem is), I tell them that the device isn't working properly and that I'm really suffering as a result. If the person on the other end of the line is at all human, they will help someone who says they are suffering. Sad thing is that I'm not even lying when I make these claims--I'm just sure to be dramatic about it. <img src="i/expressions/face-icon-small-smile.gif" border="0">