Apple appears to be censoring discussion of a display manufacturing defect in the PowerBook G4 17-inch and have not acknowledging that the defect even exists. Notebook computers, especially 17s, are an expensive investment to have just go belly-up shortly after they come out of warranty. Some people have had their machines die right after the one-year warranty expires.
One factor that may be hampering Apple's ability to identify and track such manufacturing and/or production problems is that international AppleCare complaints aren't tracked on analyzed in a central database. Instead it's a patchwork of databases kept by individual countries that isn't shared amongst the group. This renders Apple unable to detect worldwide complaint patterns that would alert them to defects.
Update: A Web site was posted yesterday with uncensored discussion of this problem and loaded with specific, up-to-date advice on what people can do if they have this defect.