One common problem with projector screens is that they curl up over time. This can be caused by a variety of factors, including humidity, heat, and dust. To fix projector screen curling, you’ll need to identify the root cause of the problem and address it. If the problem is due to humidity, you can try to reduce the humidity levels in the room or replace the projector screen if it’s damaged. If the problem is due to heat, you can try to reduce the temperature in the room or replace the projector screen if it’s damaged. If the problem is due to dust, you can try to clean the projector screen regularly or replace the projector screen if it’s damaged.