My brain's on overload at the moment, so I'm turning to you guys for
help. I need help w/ a formula that will count the number of sales
that someone had based on a certain date...I thought I could use
sumproduct, but I'm beginning to wonder if I was wrong about that.
The relavant columns are D & M.

Col D Col M
12/24/2009 Andy
12/24/2009 Charles
12/24/2009 Andy
12/25/2009 Charles