Complex sentence: The screen used in the TurboExpress is another source of problems; though it was state of the art when it was released, the LCD technology used was still fairly new and the rate of pixel failure was very high.
Split into simpler sentences: The screen used in the TurboExpress was another source for problems; though it was state of the art when it was released. The LCD technology used was still fairly new and the rate of pixel failure was very high.