If your HP tx1000 tablet PC is stuck on a black screen, you are not alone. The HP tx1000 tablet has a defective NVIDIA chip which sometimes causes the laptop to get stuck at a black screen and not boot over time. This often happens (conveniently) after your 1 year warranty ends. If you are having this problem with your HP, check out this step by step tutorial. In it, you will learn how to open up your computer and easily fix the motherboard to prevent this from happening.