iPod touch very buggy

I recently got an iPod touch and it is extremely buggy when it comes to deleting stuff. First, I can’t delete movies unless I do it through itunes. When I delete movies directly on the iPod, the movie reappears on my list when I reboot. However, the movie errors out when I try to play it.

Secondly, everytime I connect to iTunes my downloaded apps all stop functioning. I open up the app; it shows it’s intro page; then crashes back to my home screen. I’ve tried both synching and not synching my apps. Both did not resolve my issue.

This is my first Apple product. I like the user friendliness, but when it comes to having control and tweaking stuff, I am diasapointed.