I just ordered and received my new Maverick dual probe yesterday. I got it all put together last night and fired it up just so I could get used to the setting and i noticed that probe two was reading 4 degrees cooler than probe 1 at the same room temp. Unusual. I fired up a pot of boiling water and both probes went to 214 instead of 212 degrees. Is there a way to calibrate this thing. I read such good reviews about it on the forum that I thought I would give it a shot but now not so sure. any suggestions?