I have a 3rd generation iPod touch mc model with the 4.2.1 version downloaded on it, therefore classifying it as a tethered jailbroken device. I have downloaded dTunes on it and whenever a movie is fully downloaded and I try to play it there, dTunes crashes. One of the big reasons I got the iPod was so I could download movies so my family and I could watch them with an av cable connecting to the tv. Help please!!!!