Jerome Fine replies: Something is wrong here. Assuming that the QVT103 is the same as a DEC VT103, then what you have is a real PDP-11 (limited of course to a VERY small backplane and power supply) along with the equivalent of a VT100. And while is really does not make a difference, which PDP-11 OS are you running. If you have taken out the PDP-11 boards from the QVT103 backplane - or just left them there and are using the QVT103 as a terminal running under E11 on a 486, then you also don't say how the QVT103 is connected to the PC - via a COM port? These details are important since they clarify the system you are using. In lieu of any other information, it sounds like you have a busted keyboard, but I can't really tell. Try typing "<ESC>OP" in place of PF1 and see if that works instead. Does everything else work with E11? What OS and what programs are you running? Sincerely yours, Jerome Fine