Not sure if this helps, but some electronic dimmers will show voltage with a high-impedance DMM, but no current. WHen you throw in the lamp, the voltage drops. This is normal until you trigger the dimmer circuit to pass current. Also, many electronic dimmers won't work unless the actual load is greater than (in the order of 25W). Make sure the bulb is big enough (a CFL won't work with many dimmers, even if it is rated as being dimmable).