missing icons on desktop(all)

[desanti]

i am using a dvd of knoppix(5.3.1). i can not see any of my HD's on the desktop or the usb device or the floppy.
all devices are mounted and all are specified in /etc/fstab.
when using knoppix 4.?.?(i do not remember the version);all devices showed on the desktop.
any assistance would be appreciated.