A quick question for the technical aficionados. Presently, I do not have Windows XP. I am running an older version of Windows and have a router which serves as a hardware firewall. As I had mentioned in a thread I started some time ago, I cannot use firewall software such as that provided by Norton or McAfee because it delays my J-Trader software. My question: does the built-in firewall in Windows XP provide sufficient firewall protection such that a router is not required? And does XP's firewall software interfere at all with your trading platforms, such as J-Trader? Your input would be appreciated.