Can you help me please? I have just bought a second hand 8 feet electric screen (projecta 4x3). It was only 15 months old. I bought this screen in immaculate condition with no warping at all. After I installed it at my house it was still good with no warping (as I got it). Projecta screens come with a white rod at the bottom of the screen and I wanted to cover this in black. So I bought some black velvet contact paper, slid the bottom rod out. I covered it with this contact paper and put it back. Now, I have noticing that the screen is not flat any more, especially the first 10 inches from the bottom. Is there something I can do, to remove this wrapping? I am not sure if the problem is indeed the contact paper. The screen is on a wall on the upper floor about 2 feet down from the ceiling and there is a skylight, but the sun does not go direct on the sceren. I live in a hot country were temperatures inside the house without air conditioner can reach even 30c. Is it possible that this wrapping came from the heat and not because I removed the rod at put it back? I can keep the screen unrolled, would it be better to remove or reduce the wrapping? Please help me because I feel frustrated with this problem. I thank you very much for your kind assistance. Best Regards to all.