Hi this gas range seems to have an electrical problem. It started when the display would turn itself off after baking something. This minor problem (have to reset the clock) has become more difficult as it sometimes now shuts the oven off (and display goes black) when the oven hits the baking temperature. This usually doesn't happen at the end of preheat, but in the middle of baking. We can get the oven back on by banging on the cooktop right above the display and resetting the temperature. In all cases the display shuts itself off after baking and now sometimes after using just the surface burners. The display always comes back on after a while. There's never been a problem with the surface burner ignition system, but we've had to replace the oven igniter twice. Any suggestions? Thanks, Jeff