Editing help plz!

[cable]

Hey all, got my first problem with Premiere Pro. I have successfully edited with it many times but i have no idea what could cause this. So i have just edited a concert on premiere pro, no problem there, its successfully exported and beautiful. But now I tried to take the exported video into premiere, when I hit play the video plays but not the audio. according to the meter's it IS playing but I just cant hear it. When I drag the cursor along the video I can hear the music or when I go forward frame by frame I can hear it as well, so why cant I hear the audio?

p.s. it isnt just this video, Ive opened past projects and now none of them are audible.

Any help i could get would be much appreciated.

Cheers

 

[STYLZ]

Click little right pointing triangle at top right of program monitor(top right video preview screen). Go to playback settings and make sure "desktop audio" is selected or "play on desktop hardware" is selected, depending on version.