Data from a server is rendered for display in a web browser on a client computer. A write current source selectively applies a first write current pulse to program the phase-change memory cell into the amorphous state and a second write current pulse to program the phase-change memory cell into the crystalline state. A significance is computed for each item in the list of records to determine significant items. A potential problem can be automatically reported to a network operations center responsible for the access number via a data connection.