In addition to what others have said, Mike, you might want to check-out network hubs (or whatever they're called) for collisions.
It would seem to me that a product like SBT Pro would have taken care of most of the internal performance factors.

Good luck


>We are running SBT Pro Series 6.0 on an NT 4.0 network. The performance of the system is poor. As the active users in the system increase, performace degrades rapidly. I was looking for articles or information on evaluating and enhancing performance.