Frozen, and invisible!

Okay, so I recorded a lecture from my class yesterday. I still have all my songs, and a 1 hour lecure on my sansa m240. I got the lecture off by windows explorer drag and drop. Yay.

An explorer thing came up when I popped it in the usb, saying it was nearly full...(it had a little over 100 mb left)...so I said no, don't auto delete my stuff, pretty please, I'll delete it later.

I open it up, and there is none of my original music -to- delete. But it still displays that I only have 100 is mb left. Curious, I unhook the USB. I can still play the songs that technically don't exist, not even through the windows explorer view, let alone retardo WM Player. I plug it back it, but now I'm confused. I click auto delete the songs after sync, and I sync the rest of the drive full, thinking it'll auto delete. It syncs, but now it's full, and stays full. Now whenever I turn it on, I get an error message in German, because I'm taking German, and I thought it'd be clever to change the languages to learn a little.

Well, I can't switch it back either, because whenever I go to the Sprache settings, and click English, it freezes. As I type it's done this for 15 whole minutes. Occasionally it'll just turn off at random.

Also, it's been slow for the last week. I just though because I had half the drive full, it lagged automatically. Well, now it's frozen, yes I keep replacing the batteries, but nothing helps, and the last time I checked through Windows Explorer, the Audio and Record Files are gone, and also the table, but this started beforehand.

I am friggen confused.

What is going on?