I am using Draftsight 2020 and am trying to edit drawings I created using Draftsight 2019 and 2020 on my old Toshiba labtop. I cannot switch PS sheet tabs without crashing completely out of the program and the program seems a little touchy. Just before it crashes, I get some very quick flashes of what looks like DOS windows barely opening and gone and then the program crashes. The program has been removed and re-installed twice and my program license deactivated from my Toshiba laptop and re-activated on my new laptop. I have just purchased a new Lenovo ideapad L340 17IRH Gaming laptop with i7-9750H 2.6g-4.?g 6C processor, nVidia GTX 1650 4gb, & 16gb DDR4 2400 SoDimm. 1tb Hd 5400 rpm storage & 256 SSD operations storage. I can't believe I am having trouble with the greater horsepower I have over my Toshiba. I suspect my video card somehow, but I can't believe it. Its a good one by graphic standards I would think. Please give me any help you may have.