Apparatus and methods are disclosed having application for use in data processing systems which include a plurality of data processing devices ("agents") coupled to a communication network and at least one system software resource. The system software resource may comprise a floppy disk drive, hard disk...http://www.google.ca/patents/US5226176?utm_source=gb-gplus-sharePatent US5226176 - System for selectively aborting operation or waiting to load required data based upon user response to non-availability of network load device