hello ..everyone .. i have a problem in my speaker ... creative s750 gigaworks 7.1 ...amar sub woofer a theke j out put port ase ...shei ta ek ta kaj kore na...speaker thik ase ...ami change kore kore dekh si ...out put port a problem ..ami ekhon ki kor te pari ...need help ...or suggest me the place where i can fix up my problem ..