On a fugal install on Flash usb the system will "lose" the flash drive icon, the clock will stop, no flash usb icon will appear if a new flash drive is plugged in and the system might or might not save when shutdown.

Possibly related to the internet connection as the problem does not occur if the internet connection never drops.

On reboot the icons might or might not reappear.

Occurs on Puppy 431 on two seperate systems.

Referenced in this/these threads:-

http://murga-linux.com/puppy/viewtopic.php?t=48625