Thanks alot Larrym,i put you in trouble today i mean i bothered you very much,but i think there is no need to buy a sound card since one month ago for first time that i installed windows 7 i had such a problem, when i consallted with (Fixya)one of it's experts sent me an address like you and it fortunately worked,my sound came backed but now however they try they cannot help me again, i also missed that address and when i aske them to send me all their previous answers to that donot send them to me again i have all their answers except that correct one.i think after installation i has vanished.where are you from Larrym. I am from I ran.