I have programmed the PIC keyboard keys to adjust speed (- / +), v/s (home/end), hdg (insert / delete) and altitude (pg up/pg down). I have mapped this set up for non PIC planes using latest version of FSUIPC.On a flight today, when I tried to adjust altitude using the pg up and pg down, I lost my FMC data (when to startup condition), the MCP lost F/D, CMD and A/T and the center pumps started up (I had no fuel in the center tank and these pumps were off). Essentially, I was flying but back at my startup conditions (from a saved flight).Any ideas what could be causing this ? Essentially the only change I have made is to add the FSUIPC custom buttons for V/S and Altitude. The heading and speed button where already programmed for a few weeks.Mark.

Any chance you were using keys that PIC itself uses? PIC has key bindings above what FS normally uses.Lee Hetherington (KBED)