I am looking for a C++ open source library for graphing basic 2D data
(stock charting).  Should run on the windows platform, but the output
can be any format (windows GUI, jpeg or other image file, etc).  Does
NOT need to do any analysis of the input data, no linear regression
curve fitting or anything of that nature.  I simply need to be able to
give it an array of data and have it draw a visual graph.

you should look to open scene graph
wwebsite : www.openscenegraph.org

www.openscenegraph.org is wayyy overkill for the project I need to do.
 I just want something nice and simple, and althought it may be
possible to do what I want with openscenegraph, it would probably take
forever to sort through all the complicated stuff just to be able to
do the simple stuff that I need.  I just need a nice 2D graphing
library.