SOund is NotWOrking (but working )

[superbarnie]

I am using Windows Vista Home Premium 64 bit.
i am using a realtek sound card.
I plug in my HeadPhones before i turn on my computer
then i turn on my computer and when its done sstarting up i hear the sound of Skype logging in
so i assume the sound is working.
BUT WAIT THERES MORE!!!
Then i go play a song on Windows Media Player and NO SOUND.
Aftr that i go watch a video on Youtube and NO SOUND
Also, i start up one of my games and NO SOUND.

So i go o COntrol Panel>HardWare and Sound>Sound
and i double click the Selection "Headphones"
After that I click the tab that says Advanced.
And i press the "Test" button.
And then I HEAR A SOUND!!

So thats so weird cuz the sound doesnt work but yet it works.
BtW i dont have any programs muted in my Sound Options.
WHen i use my speakers instead of the headphones, all sounds works.
my headphones arent broken!

PLZ help I need to use my computer early in the mornign sometimes but I dont wanna wake anybody UP!!!

[Allan]

Have you tried different headphones?

[superbarnie]

oh i just edited the post
i havent tryed different headphones but i
tryed my headphones on a different device and it works.

[Allan]

I would try different headphones before we look elsewhere. Let's rule out that possibility first.

[superbarnie]

i tryed an earphones but it didnt work either

[JJ 3000]

Did it ever work? Have you tried System Restore?