Twice, I have had a large power symbol appear on the screen of my 1040 Solar after turning it off. Both times, it would not turn back on when I pushed the power button on the side and I couldn't get the power symbol on the screen to go away. It appeared to be locked up. I had to hold the power button for a 3 - 5 seconds which made the power symbol go away and a horizontal line appear about 1/3 of the way down the screen. Then eventually the horizontal line went away and it looked like the screen of the 1040 finally turned off. Has anyone seen this large power symbol appear on the screen? If so, what does it mean and how do I get out of it?
Here is a picture of the power symbol on the screen:
