My computer crashed and I am using a different one. The computer I am using has Draftsight 2015 on it. I want to put Draftsight 2017 on it. These are both Professional versions. I still have the Draftsight information in my email for the license, I got it back in late December or early January. I tried to download and install on the computer with Draftsight 2015 on it, but the version is up to SP2 now and I am not sure if my license from Draftsight 2017 will work. What can I do to get my system up to the version that I paid for earlier? Am I able to keep the Draftsight 2015 on the same computer or do I need to uninstall it? Any help would be greatly appreciated. The Draftsight 2015 keeps crashing even with the hotfix. It gets very tiring especially when it crashes before I can save my drawing.