It says "On Off On Off..." when you press F1, or does it say "On Off On Off..." as soon as you activate an option? (ex. Numpad keys)
I have had that "On Off" issue when activating options in certain games.
Usually I can resolve it by pressing the activate/deactivate key again. However, I've only encountered the crashing when I use the wrong trainer version. (I'm assuming a c2d, crash-to-desktop)
Try the retail trainers but keep in mind, BFBC2 updates have been coming out quickly, and what worked yesterday might not work today. Especially thanks to the "Auto-Patcher" that will update the game silently (without any prompting windows or questions).
yup it was an update issue thanks for the info.case solved yay. also want to say excellent work to the team especial pwizard as I know he has been getting a lot of stress from this from reading his post.