mtab very long

[Sebastian Witt <einstein030@gmx.de>]

hi.
my problem is, that the output of "mount" is very long (and also the 
/etc/mtab file.)
it has double entries over and over:

proc on /proc type proc (rw)
devpts on /dev/pts type devpts (rw,gid=5,mode=620)
usbfs on /proc/bus/usb type usbfs (rw)
sysfs on /sys type sysfs (rw)

these are repeated many times. for the complete output look at
http://nopaste.php-q.net/135360

output of "cat /proc/mounts" is only
rootfs / rootfs rw 0 0
/dev/root / ext3 rw 0 0
proc /proc proc rw,nodiratime 0 0
sysfs /sys sysfs rw 0 0
devpts /dev/pts devpts rw 0 0
tmpfs /dev/shm tmpfs rw 0 0
/dev/hda1 /boot ext3 rw 0 0
/dev/hdd1 /shares/hdd1 ext3 rw 0 0
/dev/hdd2 /shares/hdd2 ext3 rw 0 0

any suggestions how i can reduce this ?
something is going wrong, but what ?
(i have no /etc/auto.* files)

thanks in advance
Sebastian