Occasionally, due to some misadventure, xcatview might crash. In this eventuality some temporary files can be left in existence; these must be deleted before xcatview can be used again. The files will be in subdirectory adam of your top-level directory (unless you have explicitly assigned this directory to be elsewhere). The files have names beginning with catview and xcatview, for example:
Simply delete these files and xcatview can then be started as usual.
CURSA Catalogue and Table Manipulation Applications