SurferTim:
Holy cow! Where have you been? If this is an ethernet shield, digital pin 4 is the Slave Select pin for the SD SPI interface. Sometimes I wonder why I do this...
Very unfair comment I think.
I am a complete novice to Arduino and electronics, so please excuse me as an idiot if I'm not up on your level. I was hoping to use the forum to help learn and solve problems - just like zoomkat has kindly done with his constructive posts.
Tomorrow, I will know more that I did the day before. You, however, will most likely still be an ass.