Can you adjust/zero the ohms reading on an autoranging DMM? I opened it up and found 2 trim pots but can't find any schematic or chatter about this. I do not want to adjust them unless I'm sure of what they are for. When I short my leads together they read about 1.2 ohms so I have to recalculate when measuring resistors. It could be the leads them selves but the local radio shack sells crappy stuff. It's a craftsman model 82029. While I'm at it could anyone recommend a decent DMM for a novice that's not overly priced or too complicated to use? I'm looking to spend 60 to 75 dollars if I buy one to replace this one.