[enjoialone]

i was going to do what adicoto told me, when i noticed that i had a private message, ill write exactly what the msg says:

before installing other codecs, try this:
go to Start -> Run and launch dxdiag.exe

chose "Sound" tab and drag the "Hardware Sound Acceleration Level" to "Basic Acceleration"

and its working now, thnks a lot, adicoto and mhanor for your help ;)