I upgraded to SSCP4.0 yesterday on both my desktop and laptop. Previously I was running with both Sonicstage for my NW-E75 and ConnectPlayer for my NW-A3000. After upgarding SSCP4.0 recognises my NW-A3000 as an ATRAC device and, try as I might, I cant transfer songs to the device on either the desktop or the laptop. Progress indeed.