I found the answer on this problem in this Topic on another forum AVForum This made my day. The player is fantastic.

I have just bought a Sony NW-HD3, and it is a beauty. It works very well for me, and the new SonicStage 3.1 works ok, when downloading from Sony Music Store and installing. I did not install the version from the original CD. It's a little bit slow, but I have the time to wait for the program to...