no sound from bose speakers connected to imac
using a 5yr old imac w/10.6.8 show leopard. suddenly no sound coming out of bose speakers- which worked fine yesterday. we prefer richer sound! tinny computer speakers do work , but can't get enough volume to watch a movie. have tried: 1) restarting 2) turning off & on using P+R+ COMMAND + OPTION - as advised somewhere when looked for help 3) finding instructions for VDRAM or whatever it's called. 4) followed recipe - computer worked fine, but sound still off 5) checked mute symbol- no help. 6) tried for an hour to make a genius bar appt---forget it. no handy drop down list came in. only a one to one requirement to change our password! also is very hard to schlep this beautiful 27" monster into apple store plus have to go there to make an appt. simple diagnostic help for dummies would be greatly appreciated! thank u so much!
MacBook, Mac OS X (10.6.7)