I sporadically get the "A server error has occurred. Retry, or cancel and return to the previous screen" message when I use the Android Market. It happens when I search for apps, (try to) download apps, check downloaded apps, and navigate through the Market's menus. My wireless also seems to be going to hell. My phone won't find and keep a wireless connection automatically. I find myself forcing the phone to connect to networks it already remembered. If the phone goes to sleep, there's no guarantee it will pick up the same network again. The phone also loses its wireless connection for (what seems like) no reason. What should I be looking for and doing to fix this?