Getting persistent crashes of NT, but only when a futures contract is shown in time and sales of MBT's navigator. When NT and Navigator are open but no quote is entered into the Navigator NT does not crash. The following have been done: Reinstalled .NET Framework 2.0. Reinstalled NT. Reinstalled MBT Navigator. Someone posted in the reviews of NT that they experienced this same problem and it turned out to be a virus. I have run Ad-Aware, Spybot, AVG, Avast and a-squared, but the problem persists. Is there anything else I can try before doing a clean reinstall of XP Pro? Thanks! Alan