Originally posted by KxBlaze Transfer the video/picture from the SD card to your computer and see if the red dot shows up. If it does then its not a hot pixel (don't know what it can be). If it does not show up then most likely it's a hot pixel.
I think you have that backwards. If it shows up on other than the camera screen, then it's recorded in the image. What I've always considered to be a Hot pixel (perhaps a dead photosite?). I had one on my K7 right out of the box, described exactly the same way. Pixel mapping took care of it.