As you probably recall, I made a homemade driver from recommended parts. It's an LM317T with a rheostat and just in case resistor then a capacitor and one direcitonal current diode thingy then a LD. So along with the capacitor and diode, I also added in parallel two wires with aligator clamps and I clamped them onto the probes to my multimeter. So I measured the voltage while the LD was on and turned the resistance on the rheostats up and down a bit and the voltage chaned a little and that was all neat and stuff except really I hooked it up that way to measure current cuz I wanted a digital readout of how much current was going to the LD. And yes, I did change the terminal thingy over on the multimeter so it could measure current. But I must not be doing it quite right cuz the LD wouldn't turn on when I was measuring current. I even turned it way up to 40 ma, the recommended operating current for the LD, and it still wouldn't turn on. I thought you measure current with the terminals at + to + and - to - in parallel but that must not be right. Either that or something stranger is going on. Any insights?