Draftsight 2020 Crashed and would no longer open...removed all things Draftsight from C: Drive and the registry. Reinstalled. Draftsight now opens and can edit 2D Files, but has extreme latency in opening and closing files and acts as if having issues with graphics driver. I have been running draft sight on this same laptop for years with none of these issues. But started off with 2015 and migrated to 2020 over the years. I some registry entries or settings from legacy versions have been lost and allowed these issues to surface.