Sure wish Tradestation would release an upgrade with integrated ECN books soon. Just that fix would be good by itself. Running the java applet ARCA book is a resource hog mktman
Integrated ECN books should be available in TradeStation 7. For other details please read Request #6 http://www.tradestation.com/aboutus/letter.shtm. We do not have a date for this release yet, but understand how important these enhancements are to our customers. Thanks, Janette Perez Vice President of Strategic Alliances TradeStation Technologies, Inc.