So far, my searches for an answer have been disappointing. So here goes a new post. I rooted using SuperOneCick and then installed market using TheKWA's method for MID7127. All is well, had to do the LCD Density trick for Market to work correctly. This happens on two tablets, as I got each of my son's one. Even when I did not root it, I get the problem. When I turn the screen off, after around 30seconds to a minute, the screen flashes on, then off after a few seconds. Then it repeats. The time that it comes back on is always different. I hear alot of Kyros owners say they got the market working, especially 7125's, but don't hear anything about the screen on/off problem!!