I recently purchased an Xperia X10, so I could finally own a phone with HD video capabilities. However just recently I've had issues running youtube videos. I can watch videos ok in normal quality, but as soon as I try to watch them in HQ, the phone will mess up. I'll either get a black screen or a message saying the app isn't responding. Occasionally the audio will play, but with no video. After getting these errors youtube will often stop working entirely. Any help would be appreciated.