HP Matrix Operating Environment Software - Manual (Page 68)

An alert that calls attention to important information that, if not understood or
followed, results in personal injury. WARNING
An alert that calls attention to important information that, if not understood or
followed, results in data loss, data corruption, or damage to hardware or software. CAUTION
An alert that calls attention to essential information. IMPORTANT
An alert that contains additional or supplementary information. NOTE
An alert that provides helpful information. TIP
68 Support and other resources