Excited about smoking a ham today, I started getting everything ready a bit early. I purchased a new Et-73 and pulled it out with the instructions and started to program... Since I am a few hours from the actual smoke, I turned off the unit and surprised when I turned it back on to confirm my settings and everything reverted back to the factory settings. ( GRRR!) Is there anyway to save your setup so you do not have to reprogram the unit before each use?