youtube suddenly not playing videos

[boredmug]

I'm on Fresh 1.0. suddenly i've noticed that youtube and other "choice" sites.. lol aren't playing videos through the video player. Sometimes they will play other times they won't. Trying to watch them in high quality doesn't work at all. Only real thing i've done is flash the android 2.1 rom from xda and then wiped and did a restore to fresh rom. Anyone have an idea whats going on? it gives me an error saying cannot play video and also video doesn't support file type.