I think I figured it out to some extent. As I was typing the above reply, I thought to myself that this sounded like the screen saver was trying to engage even though I did not enable a screen saver. Sure enough, the screen saver was enabled and set to 5 minutes. I turned the screen saver off and I am no longer getting the error.
I do not believe I enabled the screen saver so I am confused as to why this would start out of the blue a couple of weeks ago.
Thanks,
Thai