vts,
Did you have legacy adapters on ALL non DishPro receivers in the system, and ONLY dishpro LNB's AND DP34 switches in this system?
Reason I ask is I have one system in service that has three model 6000's, one 508, and two 301's. One 6000 is on the first DP34 switch, while the other two are on the second switch. I had NO problems once all DP gear was installed, and it has run fine for 8 months now.
avdude
www.integrationpros.com