I downloaded and installed free Draftsight 2017 SP 2, on startup, I get the message that activation is required. After filling out the activation form, the program flashes for a second on-screen then immediately self-closes. When it is opened again, the same thing happens. It appears the hotfix does not correct this issue. When I run the hotfix, I get an error that none of the specified products are on my system and no changes occured. Help please?