I sent my machine in to be fixed in DEcember I got it back about 2 weeks ago I carved 3 successful patterns. and now I am getting a board tracking error message I have my machine in my garage I have read that if the temp. is not above 40 degrees that the machine will not function yesterday was a warmer day garage almost 60 degrees. Will the temp affect the the tracking roller? I also read on a post about having to make head preasure adjustments with different temps is this neseccary everytime I want to carve.