I have had Vegas Movie Studio Suite 13 fully working including all the plugins especially Boris. Recently I looked at Vegas Studio 16 -17 trials but could not see any advantage. However continuing an editing session started some time ago, suddenly in the middle of it, all my Boris efx suddenly would not operate and I was looking at a message register then saying my evaluation period was over Register your Ser No. I pulled out my Software Serial Numbers and it clearly said No Serial Number required. Boris was supplied as a fully working plug in, not an evaluation product with Vegas Movie Studio Suite 13. I am not using any other Vegas version which I understand it will not work with, only Vegas Movie Studio Suite 13. Help.