My K100D has been having a problem. If I hold the button down halfway to auto-focus, the flash tries to stay on like a flashlight until I let up or take a picture. I already broke the flash once as I wasn't sure what was happening. Luckily, the $200 repair was covered under warranty. Now I have it back and it is having the same symptoms. Could my flash setting be too high (is this even adjustable on my camera?) Thanks for the help.