Hello! I have recently had my G9 repaired to correct a Power-Up problem (I had the EXACT same problem with my G7 a few years ago). Suddenly, the camera would not turn on. When it happened to my G7, I called Canon and they offered to send me a reconditioned G9 for $150. I did that. When the same thing happened to the G9, Canon offered to sell me a G11. I decided to try another camera manufacturer instead since I had the same problem with two different cameras. Then I found CAMERAS & PARTS.com (a repair shop in El Paso, TX that works exclusively on Canon cameras) on the internet. They fixed my camera to better than new condition for around $100. They also said that they fix hundreds of Canons with a power-up problem every month! Apparently, a screw inside the camera works loose, falls about the camera and short out a circuit board (or something like that). It is a simple fix and the people at this repair shop are helpful, quick, and expert at fixing this problem. I highly recommend anyone who will eventually have this problem with their G9 to contact camerasandparts.com to have this problem quickly and competently repaired.