ok, been programming norstars for several months. had a site that had a MICS Plus with a bad DS card (2 ports). expansion unit had 3 cards but main cabinet no cards. powered down and installed DS card in main cabinet slot 2 and marked bad ports on 058 and 059. punched down a spare business line to white/blue on the 66 block to go to the new card and was about to chk for dialtone (in case it should have been line 025). manager said they can no longer pickup any incoming calls, buttons on phones are not working, etc. found that a different target line (for DID/PRI??) was assigned to every phone. we don't have DID or PRI at the location. removed all target lines from sets, then pickup still didn't work so had to reprogram pickup group, add all sets back, etc. anyone know what fubar'd the system? thanks for the feedback. don't want to do this again.