I've read your post 4 times and I still cannot determine what the following term means:
i had been downloading a lot of drivers but cant also.
Does that term have an English translation?
Perhaps if you downloaded the correct driver, the results would be more postive.
The Acer Veriton 5500
contains a Realtek audio chip
, not Sigmatel.
File name: Audio_Realtek_5.10.00.3800_W2KXP.zip
Size: 14.6 MB.