I also get that sometimes.
But mine just shows a garbled image with nothing but noise. Then there is also the occasional freeze up where it just freezes the display and stops working. Buttons don't do anything when this occurs.
The "fix" is taking out the battery and booting up again. It occurs randomly, I wasn't able to find any reason for it to occur. But if it is working, there aren't any problems unless these things happen again.
mine is firmware 1.22 with the E8 hack. I hacked it a few hours after I got mine so I wasn't able to confirm if it occurs in stock form.