I ve bought a brand new sony nw-s603. I used it nearly for 10 ays. it worked fine. i transferred songs, deleted songs, listened songs... Today, i wamted to transfer some more songs. i am using sonicstage 4.3. when i connected, it said : "the connection between device and .. is UNSTABLE. please reconnect. if it fails, delete all tracks etc..." reconnected it again and again, it still said the same message. i deleted all the songs:( it progressed but when the deletion progress ended, it said : "failed to delete all tracks 000066d7". I still got the same message. I loaded version 4.1 and it said "you used upper version of sonicstage. please delete tracks etc...", i tried to delete tracks, and when it came to 99%, program shut down suyddenly. tried it again and again, did the same. i formatted it via the device itself (advanced settings, format), i still got the same message. THE WALKMAN CANNOT BE USED FOR NOW. WHAT CAN I DO? I HATE SONICSTAGE BECAUSE OF THIS PROBLEM. PLEASE HELP ME. SHOULD I FORMAT THE DEVICE VIA WINDOWS? PLEASE...