I cannot play Cards in full-screen mode

Question:

I cannot display cards in full-screen mode. An error message saying "Memory shortage" is displayed.

Answer:

Closing other apps and/or deleting cards that you no longer need could help free up memory. If you have created a very heavy slideshow you may want to divide it into two parts and try playing it in full-screen mode again. If this doesn't help, power off and reboot your iPad.