Today I found out something interesting.

I was listening to an internet radio with WMP11 (Windows media player), and I had to download something to a TSU9800. When the download started WMP11 notified me, that it has found a new Device it can sync with and asked me:
1) search computer
2) i want to select the files
3) later

And it shows that it is a 39,9MB device (even identifies it as a TSU9800).

It seems that the WMP11 uses something that can infiltrate into the downloading process of the PEP2.

I don't dare transfering anything (and did not try if it works) but I find this information interesting. Someone else had a similar encounter before?

This is normal.

WMP sees the pronto as a new drive (drive area from pronto is mounted during download only). Don't explore the drive as it will be removed as soon as download completes.