I've been working on an arduino protoshield. It has been working fine until I added three resistors from pins 9, 10 and 11 to a multi color LED and then the other leg to GND. Now when I plug in the shield it shorts the Arduino. I pulled out my multimeter (which I'm only just learning to use) and found contuity from GND to 5V when not plugged into the Arduino. I looked hard and can't find any solder bridge between these points as well as accidentally soldering to the wrong pads on the entire thing. Is it possible that two layers of the board came into contact inside the board?
What do I look for in debugging this problem? Would posting pictures help someone see things or does that sound pointless?
I appreciate your help! :!: