Hi GordieB, There hasn't been any code change and if you have 752 software on your replay lite, a change of code wouldn't effect you. More than likely your cable company has moved the channels to different frequencies.They are doing this all over the UK and Ireland. If you do an Auto Scan, you should find all your missing channels. Iknow this can take a while,what I usually do is leave it scanning when I'm going to bed and sort them next morning. To check what software is on your box. Go to Menu,Utility,Receiver Information, OK SW Version should read 7.52 That was the last upgrade for the replay lite.