hi guys

ive recently bought a mac mini with mac os x and all the new software, my internet worked fine with safari software and it was great could listen to replays of TATW and clips in the cd shop, the other day i was listen to TATW and it just went off, every time i click on any replay like that the bar loads up but no sound

any suggestions

the volume is up and the computer sound works fine because my i-tunes works fine, its just anything through the internet

please help