I loaded up about 850 stocks (all done one by one) into my list of stocks and loaded them into market Analyzer with two custom indicators and it sent my machine on to its knees. I am using DTN as the data source and the machine is the same that I was doing the same screening with Tradestation (the program I am trying to replace) During loading of the data if I tried to open or change a chart (on another window/monitor) it appeared to lock the system and I had to reboot. the indicators use daily prices and they look at the last High/Low/Close data for the past two weeks. Should I expect that NT takes more resources than TS and a bigger machine will solve the problem? Is there a way to optimize the market Analyzer so that it doesn't have issues with that many stocks? Am I simply running too many stocks in the program at once?