Windows 7 freezes when streaming music

[SnooSnooKachu]

I installed a copy of Windows 7 and most stuff seems to be working fine, but when I try to use any sort of device to play music off of my computer, such as my Xbox 360 or my Sony Bravia TV, my computer hard locks to the point where no mouse or keyboard input is detected. I have all of the latest Windows updates. I know for one thing I can't trust the Windows update for my wireless network card, however, because it prevents my card from connecting to the internet. I used what seemed to be the latest drivers for my card from the manufacturers site, so I think those are good. Any ideas?