Scan Disk U3

This is weird. When I plug this USB flash drive into a USB port on my
laptop running XP Windows Explorer only shows it as the I: drive (the
drive letter 'I' is of course arbitrary). This has but three files/
folders:

autorun.inf
LaunchPad.zip- which contains all the executable files
LaunchU3.exe

However WE does not show the F: drive (again another arbitrary drive
letter) which is where all the user data files are supposed to be.

It is as though the autorun.inf file didn't execute.

HOWEVER if I start up an app. and open a file into it, e.g. Notepad or
Word or MPlayer etc., and then browse the folders and files on the
computer I see not only the I: drive but also the F: drive. I can then
browse to a file on the F: drive and open it into the respective
app.

So the big problem is how to make the F: drive visible in Windows
Explorer along with the files on it. I've never seen this problem
before.

Many thanks - Chris B.