I hope you'll understand my bad English
ops:
A week ago I copied new MP3s to my nano clone. Then my computer had a crash - it rebooted without any comment... Then I took my mp4-player out of the usb-port of my pc and tried to listen to my music. It worked until approx. 5 minutes later the screen got black. but the music played further! Then I tried to format the player and tried again. Again black screen and music played. Now I thoguht it would help if I copy my backup of the original firmware to the player again. It didn't helped also...
I don't know what to do next! I bought the player in Singapore and I won't get there again this year...
I hope I helped you a bit...