I have camtasia 8.6 and most of the time when I open it directly (or when it tries to open after camtasia recorder finishes recording) it shows the start up graphic and then nothing happens. My taskbar says that camtasia is open but there is no window. My Task Manager says that it's open, but I can't switch to it. So what I have to do is force it to close in task manager and then re-start camtasia studio. Then it USUALLY works, but sometimes I have to try this one or more times. Also, on a side note, I just tried to submit this as a support ticket, but after I submit, it tells me that it wasn't submitted and that I need to check my email address. I hit the back button and my email address is very much entered and correct. still doesn't work!