Well you could also take a look at Radtech's Glide kits as well: http://www.radtech.us/Products/Glides.aspx I bought one of the AlGlides and I'm not sure if I'm doing it right or not but after initial application it seemed to eliminate the noise but after awhile the effect wears off and it starts to be stiff and crack again. =( -Ben On Jun 28, 2004, at 5:21 PM, John Griffin wrote: > Colin Buttimer typed this message on 6/26/04 10:59 AM: > >> I've had my 15" Albook for a few months and the hinge has gradually >> become >> more reluctant - to the point now where it loudly cracks every time I >> open >> it. Do you think WD40 would be safe to use as lubricant - if not, I'd >> appreciate suggestions. > > I read somewhere that cautious use of Silicon Lube will do the job. As > a > matter of fact I used it in a previous Ti Powerbook and it freed it up > nicely. But you should only use a drop at a time in the hinge openings. > > Now this worked in a Ti PB. I can't vouch for an Al PB. > > jg