I also had about two days of good pain relief from the trial. Then, like you, one of the leads moved. I guess that's easy to do considering that they are only taped in place. I went ahead with the permanant implant (Medtronics SCS), Not quite as good as the trial but still decent pain relief. That lasted about three and a half years. The reason for its failure was thoughto be that some of the electrodes burned out on the paddle. Perhaps you need more program adjustments. I hope there is something they can do. This pain thing is a real, well, PAIN!