F.A.Q. Each link opens a pop-up page. Is there a trial version or demo of ProfitTrader? Is ProfitTrader a stand alone program? What data sources can be used by ProfitTrader? What are the system requirements for using ProfitTrader? Is there any instructional material available with ProfitTrader? I'm interested in your software; however, I trade corn, wheat, oj, etc. Does your software work with these markets, or just the S&P intraday? Can ProfitTrader be back-tested?