cannot play sound - I undersatnd it is a intergrated audio device - I have douwnloaded and installed your zip file Z1405U02 file and installed the 'sound max integrated Digital audio - analog device inc V 5.00.2231

However whilst tthere is no error in system/device manager/   - if I try to play a cd it brings up media player and gives error that it cannot play the file eror code OxC00D11BA 
What do I need to do?

The windows start up screen plays its sound!