The standard trick to see if a fleeting window contains anything useful is to video the display. 

You don't need anything fancy; almost any phone with a camera should do the job.

On 10 July 2013 01:18, Bob Cox <> wrote:
I'm still getting the flash presentation of the output screen but it is only visible about 0.1 seconds or less.  That's too short a time interval to see anything meaningful.

Steve Swift