audio problem on aspire 7720zg (choppy sound)

hello. my full laptop model is acer aspire 7720zg 4a4g25mi and im on win xp pro sp3. the problem is with sound. the sound ischoppy and sub-quality.

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. 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

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

 

I do also own a 7720G, and did also have the same sound stuttering issues you´ve mentioned.

What you have to do ir order to solve them, is update your BIOS to v1.45. You can download BIOS file and instructions here

Kind Regards and good luck