Hi all! I have a little problem with my Walkman and sonic stage. I got some viruses on my Pc, soi had no choice but to format it . Now to the problem. I installed again the sonic stage (the latest version), but when I plugged in the player its says that I have format it because im using different kind of sonic stage version . Is there anything i can do but not formating it . IT took me long time to aranged the songs , and many of them i dont have any more on my pc . I tried to install older version of sonic stage , the same thing. I have nwa 1000 . Thanks to all!