Can't See Files

I have a 4 GB Clip, and have had no problems until now. I uploaded about 3.5 GB of songs a few weeks ago, and now I wan’t to remove some and add more, but when I connect it to the USB I don’t see any of my music in Explorer. I only see a few files that contain music which I’ve never seen before. But when I unplug the Clip from the USB, my music is there and I can listen to it!

I’ve tried playing around with the USB mode settings. Auto-detect and MTP show the strange music. With MSC the player doesn’t even show up on my laptop.

Any help?

Thanks, but I only tried changing the USB mode AFTER connecting and not being able to see the files. So the mode was in the same mode as when I uploaded the songs.

Plus, the songs don’t show in ANY of the 3 modes - Auto-detect, MTP, or MSC!!!

What if I just format and start over?