I placed a script for killing all instances of the dataviewer program on the current computer in /cvs/cds/caltech/scripts/general/. Its called killdataviewer. This is intended to get rid of a bunch of zombie dataviewer processes quickly. These processes get into this bad state when the dataviewer program is closed in any way other than the graphical menu File -> Exit option.
Its contents are very simple:
#/bin/bash
kill `ps -ef | grep dataviewer | grep -v grep | grep -v killdataviewer | awk '{print $2}'` |