This is my first post here on this site. My son has an iPod touch, 4th generation. Ever since the ios 6 upgrade, I am seeing a few issues. I would appreciate any help. Firstly, the AppStore just force closes any time I open it and search for an app. I am not able to download any apps. Secondly, certain apps, like Crackle, just don't work. They force close again. Some apps which worked before, like 3rd Grade Maths Prep, now behave strange; my son gets a zero score even if he answers all the questions right. Thirdly, and this is not related to ios 6, is iCloud. How do I delete my son's silly videos and free up space ?