Monday morning I took up a 262,and during the middle of the flight my keyboard started acting up.Hitting the esc key would minimize the screen,and there was no other way I knew of to bring up the clipboard. I made a safe landing but could not end the sortie because of the keyboard issue. I had to turn off my pc to end the flight. When I logged back,and connected my old keyboard, I had lost the points from the flight even though I made a safe landing. I was told there is no way to fix it,but I think you should be able keep your perk points after a successful landing. I know I'll never use another wireless keyboard again! (LOL)