Hello everybody, I'm new to FSX and PMDG. I try to do the tutorial n°1 and I have a problem that could seem very simple to you but I need help : the MCP speed knob doens't react. It still displays 100 and I cannot change it to an other number (149 for example in the tutorial). MCP heading knob and altitude knob both work correctly. Do you have an idea please ? I tried to uninstall and re-install the PMDG 737 800/900 files but the problem persists.Sorry for the bad english and thank you for your help.