Right, I'm pretty sure I could watch YouTube and open it at first, but I don't entirely remember.
Basicly, if I open the YouTube app, it just sits at a black screen + status bar. But if I load a youtube video from the internet, the video either shows the video or is black, and only plays for one second. At first, I thought this could be because of YourTube 2, I uninstalled it, and had no difference. I doubt this could be why, but I did remove five-icon columns, as it's not compatible with ios 4.
I hope someone can help, and I only just restored and got it to my liking ^_^