I have loaded Succession 4.5 and installed the newer TMDI cards. I cannot get the D-channels to come out of yellow alarm. I can loop the local PRI back to the CO and it works fine. When I try to loop the card it acts like nothing is there. I am going to replace the cable and the DB9 to 45 connector, but is there more to this? I seen another post that mentioned they could not see the cards in LD 48, and I do not see mine either. I do not have another system that is running 4.5, so can I reload the software and see if that fixes it? This system does not go live for another week so I have some time. I also have the older DCH cards that I can put in and build the D-channels as DCHI, but I only want to do that if I have to. I also have an older processor that is running 25.4 that I can use if needed. Any suggestions?