Have a CTC3 that someone has decided to calibrate it!!!!! I cannot access the tools page now to get to the page to recalibrate. When you touch the screen other icons do switch but unable to access any of the left hand icons.We tried to connect to the screen to download the project again but RJ45 under facia not working.With crossover cable connected PC shows no connection. Has anyone any ideas? Can you download program via cbus? Thanks