Several times each performance the power goes out on my px-5s. I just have to turn it on again but it can be a major thorn in the performance. I believe the end of the adapter that goes into the keyboard is just slightly loose so that when I'm playing a jiggle can cause the keyboard to turn off even without the plug coming out. Taping it on doesn't seem to help either. I can't find anyone else with this problem? I'm going to buy a new adapter (not that it would be a guaranteed cure) but I can't find it anywhere in stores (Canada). Any ideas? Thanks, Doug.