I just noticed the dimming issue this evening. I have the GE PVM1790DR1WW. I can get a new control board for about $230 or a remanufactured one for about $100 (with 1yr warranty). Should I take the chance with remanufactured or go with new? I haven't taken the machine apart yet to check out the previous suggestions of removing a plastic piece or cleaning dust off of the inside cover, but I'm just thinking worst case scenario to check out my options.