I have this exact same problem however it does not work when connected to HV MV or LV, it drains the power at a ridiculous rate however, i have all the other upgraded machines (barring extractor) and they all are working fine, this has only happened since i began going into the force field mod could this be a problem? i have 64-bit 1.7.0_05, i have refreshed the server software as well with no change