Hey thanks,
That worked. I don't know why it used to work under the old settings and then all of a sudden didn't.
Does anyone have a theory?
You accidentally edited the file and replaced 3333 with com3.
I don't think so. It worked on the com3 setting for months, it was a mistake that was in there from the beginning. It had actually been running for three days when the error occurred. It shared at 10.50 AM and when I turned on my monitor at 11.20 it read the error message on the bottom of its list of last shares. So I know that wasn't it.
I was running CGminer 3.8.1, Is it possible that it tried to update itself and could not run with a faulty setting?