Users of GPS receivers are advised of potential problems due to GPS roll over

Original warning text

1. USERS OF GPS RECEIVERS ARE ADVISED OF POTENTIAL PROBLEMS DUE TO
   GPS ROLL OVER. THIS PROBLEM IS RELATED TO THE FIRST ROLL OVER OF
   THE 1,024 WEEK GPS CLOCK CYCLE WHICH WILL OCCUR AT MIDNIGHT ON
   AUGUST 21, 1999.
2. ALL GPS RECEIVERS KEEP GPS TIME WHICH BEGAN ON JANUARY 6, 1980.
   GPS TIME IS INCLUDED AS A DATA FIELD IN THE NAVIGATIONAL MESSAGE
   TRANSMITTED BY EACH SATELLITE. SOME GPS RECEIVERS HAVE LIMITED
   STORAGE SPACE FOR THIS TIME INFORMATION AND CAN ONLY HOLD A
   MAXIMUM OF 1,023 WEEKS. THESE SYSTEMS WILL INTERPRET WEEK NUMBER
   1,024 AS 0.
3. MANY GPS RECEIVERS ARE KNOWN TO BE UNABLE TO MAKE THE TRANSITION
   FROM WEEK 1,023 TO 1,024. DURING THIS TIME THE INTERNAL CLOCKS OF
   THESE GPS RECEIVERS WILL EXPERIENCE A LACK OF ABSOLUTE REFERENCE
   AND MAY GIVE THE WRONG TIME AND POSITION OR MAY LOCK UP
   PERMANENTLY.
4. SOME OF THESE GPS RECEIVERS ARE REPAIRABLE WITH UPGRADES AND
   OTHERS WILL BECOME UNUSABLE. USERS ARE ADVISED TO CHECK WITH THEIR
   GPS MANUFACTURER REGARDING THE STATUS OF THEIR RECEIVER. CURRENTLY
   GPS RECEIVERS ARE IN THE 1,023RD WEEK.
5. FOR FURTHER INFORMATION SEE SECTION 2.3.5 (PAGES 18-19) OF THE GPS
   SPS SIGNAL SPECIFICATION, 2ND EDITION, ISSUED JUNE 2, 1995 WHICH
   REPEATS THE WORDS AND WARNINGS OF ICD-GPS-200. IN ADDITION GPS SPS
   SIGNAL SPECIFICATION MAY BE OBTAINED FROM THE WEB AS AN ADOBE
   ACROBAT (.PDF) DOCUMENT AT THE U.S. COAST GUARD'S SITE AT HTTP://
   WWW.NAVCEN.USCG.MIL/GPS/GENINFO/GPSDOCUMENTS/SIGSPEC/DEFAULT.HTM.
   REMEMBER, FAILURE TO CORRECT THE PROBLEM COULD LEAD TO SERIOUS
   NAVIGATIONAL PROBLEMS BY PLACING LIVES AND PROPERTY AT RISK.