Anyone know how to get a LED to visibly light in multisim 10? Trying to use them as feedback to testing my circuits, but I can't seem to get them to show some kind of activation in multisim, I've tried wiring a simple 5v Vcc -> 150ohm resistor -> LED - GND connection and still nothing when I play simulation.

 

Try using a switch at VCC. And multisim requires a ground, even if you use a battery symbol. I love the program, even if it gives too many timestep errors.