df problem

Hello,

I have a problem with df. Its output seams to be corrupt.  df shows an=20
equal size for all file systems. e.g.:

# df -m
Dateisystem          1M-Bl=F6cke    Benutzt Verf=FCgbar Ben% montiert auf
/dev/hda2                36513      3128     31530  10% /
none                     36513      3128     31530  10% /proc
usbdevfs                 36513      3128     31530  10% /proc/bus/usb
/dev/hda1                36513      3128     31530  10% /boot
none                     36513      3128     31530  10% /dev/pts
none                     36513      3128     31530  10% /dev/shm

I am using:
Kernel: 2.4.7-10
df version: df (fileutils) 4.1

Did anybody had this before?
Thank you for your help!!