My first post on here!!

I have the same problem on my CIX 670. Last Tuesday (3/29) the vendor who does more complex maintenance for us came and installed a BCTU2A processor and a BEXu2A expansion card. I was gone on Wednesday and when I came in our main station which has a pdn and 4 or 5 phantom dn's has "hold" on the DKT3020 display and one of the phantom dns flashes what looks like to be the 10 pulses per second. If you press the "page" soft key it will go away. This station has a DDS3060 as well as a add on module.

Our vendor came in (very knowledgeable)and he had never seen that problem before and he fixed it by deleted the entire station and adding it back. Problem fixed UNTIL I came in this morning and the same problem was happening again.

Any thoughts?!?