...from the FAQ at: http://www.apple.com/support/powerbook/displayprogram/

September 24, 2004

What is the 15-inch PowerBook G4 Display Repair Extension Program? A limited number of 15-inch PowerBook G4 computers exhibit a display issue which may cause faint white spots to appear on the screen over time. The 15-inch PowerBook G4 Repair Extension Program is a worldwide program covering replacement of LCDs that exhibit these white spots. Your PowerBook G4 serial number must fall between one of two serial number ranges:

▪ V7334xxxxxx to V7345xxxxxx ▪ QT331xxxxxx to QT339xxxxxx

NOTE: this repair may apply to factory refurbished machines whose serial numbers do not fall into the above range but if you call Apple's support number (as listed on the above web page) and have the white spots issue they should be able to correlate the refurbished serial number to the original serial number. Factory-refurbished PowerBooks are eligible for this program.

These computers were manufactured from July 2003 through November 2003. PowerBooks with the serial numbers listed above may be referred to as:

▪ PowerBook G4 15-inch Aluminum (1GHz G4 or 1.25GHz G4) ▪ PowerBook G4 Titanium (867MHz G4 or 1GHz G4)

How can I tell if my computer exhibits “white spots”? To determine whether your 15-inch PowerBook G4 exhibits “white spots”, follow the instructions on the above web page.