I installed the DS 2020 SP4 version on the new hard drive due to its breakage. When I want to create blocks, it doesn't work properly. When I want to edit the new block, it freezes because it tells me that it can't find the line style anymore. This also happens to me on drawings made with the DS 2016 SP3 version that I had already made with the previous version. Now it is no longer possible for me to edit blocks and the whole program freezes me. What do I have to do to be able to use the program that I installed a short time ago? Thank you in advance for your quick response.