I am a registered owner and have not had any problems until the latest version. I install it and after a few clicks on other programs the icon goes away and the gives me the error that the exe is no longer available. It appears that all of the other files are there, just not the .exe file.
For example, I installed it on May 12. Today I was in Excel. jv16 was closed. I deleted a cell in the spreadsheet and the icon disappeared. Like I said all was well until the latest update.