Android Market: Unsuccessful Download

Have you ever got this message "Unsuccessful Download" when downloading from Android Market? Well, one day I tried to download something from android market and got this message from android tablet which I bought recently.

After some reading and found nothing, and looking at my tablet I realize that my tablet time and date reset and go back to 1977 due to empty battery. So...

The solutions is: Make sure your date is set correctly. Then try again download some apps from market.