Comment 12 for bug 476760

Thankyou.
It was a gnome theme.
I have been unsucessful since dispite downloading a few more.

I know have two Terminal outputs;

--------------------------------
   OpenShot (version 1.2.2)
--------------------------------
state saved
Not the primary instance of OpenShot. Not starting queue watcher thread.
The program 'openshot' received an X Window System error.
This probably reflects a bug in the program.
The error was 'BadWindow (invalid Window parameter)'.
  (Details: serial 53 error_code 3 request_code 3 minor_code 0)
  (Note to programmers: normally, X errors are reported asynchronously;
   that is, you will receive the error a while after causing it.
   To debug your program, run it with the --sync command line
   option to change this behavior. You can then get a meaningful
   backtrace from your debugger if you break on the gdk_x_error() function.)

AND, the previous output posted. It changes according to the Gnome theme used.
I get this output when OS flashes the screen for a split second before closing again.

The previous output posted using a different theme no longer starts OS for that split second flash, nothing at all, the terminal also freezes (not the computer though).

I hope this helps.