By connecting the serial cable and watching the bootup process in hyperterminal, would there be any indication of low voltage in the boot up process, or is that the only thing it could be, not something wrong with the unit itself or anything like that (at least that you can think of) My tempreature sensor dosen't work either (not that I think that has anything to do with anything) is there anyway that can easily be fixed, as I'm worried about how hot the unit gets in my setup.