Blu-ray not working why? can anyone help

[Diaso75]

My VPCEB4X0E will not play Blu-rays,Dvds or Cds since I upgraded to windows 7 Ultimate. All the drivers seem to be correct but still no Playback. Can Someone help please !!!!!!!!!

[VivaLaMarty]

Im having the same problem....cd's and dvd's work fine. But everytime i try to watch a blu ray it crashes or freezes

[VitoCor]

Hello...

Do you have Win DVD BD installed????