I have been playing downloaded podcasts on CD`s, news videos from reuters, internet radio etc., all without difficulty but recently for the first time I have tried to play a tutorial on Learning electric.com and also for the first time a pre-recorded DVD. In both these cases I get pictures but no sound.
Could this be a hardware problem or am I possibly missing something?
I am using a Dell desktop pc (with Win xp+sp2), which is still covered by a service agreement.
Help would be appreciated.