sound problem on aspire 7720zg

hello. i used search function but it ddnt give me any helpful info about how my problem can be solved. my full laptop model is acer aspire 7720zg 4a4g25mi and im on win xp pro sp3. the problem is with sound. im not sure how to desribe it well, but the best word i know is sub-quality. i ddnt notice it before i start listen music on it. when it comes to listen music... awwwwww, it annoys me. prolly cuz i finishd school of music. umm well seems im going to much offtopic

i tried every sort and kind of drivers i found and i had no success. last time i reinstall codecs was the worse try. over a period of listening song music be lost very often. every 3-4 seconds i suppose. after that i install codecs from acer site for my notebook for win xp. THIS problem solved, but i still have my first - when i heart some kind of crackling and vibrations. i cant describe my feeling when there was a vista os here, cuz i even ddnt want to try it out. after i bought that laptop i did a clean install of win xp sp3 and all was fine untill i started listening music. currently im trying to test how itll be on lossless music, but its not a problem solution. i think the problem is with drivers, but where shd i go to search? as i said above i tried all kind of drivers of realtek and and have no clue what do i do

well, i found best word that describes my prob - sound is choppy

theres no any possibility try to solve this problem on vista, as for me its epic fail by microsoft, i dont like it much. please consider only with win xp

any help wud be really great appreciated. if i missed some details just ask, ill more than happy to describe it agn

 

nobody?

 

Does your sound work properly using headphones?

 

yes