Hi All
Two related stories that might shed some light on this... A few years ago, we noticed a strange fishy smell in the house at the top of the stairs. It wasn't there all the time, but started in the evening. To cut a long story short, we eventually pinned it down to a plastic light fitting that had started to decay. The heat of the bulb was driving the decay process, and that explained why the smell was worse in the evening (because that's when the bulb was lit). There was no option but to replace the fitting.
At about the same time, there were stories in the press of a plastic "cancer" affecting plastic products more than 30 years old. This was a spontaneous breakdown of the chemical structure, accompanied by a vinegary smell. The real killer is that this particular "cancer" was infectious in that the breakdown products from one affected item could start the reaction in another. and another, spreading just like a fire.
So how what does this mean for iBooks? Perhaps a rare chemical breakdown affects a plastic component in the keyboard, possibly driven by the heat of the iBook. Further, perhaps the breakdown components from a faulty keyboard can go on to affect the replacement.
What would this mean? First of all, no amount of sweet smelling agents are going to have any long term affect on the problem; secondly, a replacement keyboard could be infected by some traces left behind from the first; and thirdly, the longer a smelly keyboard is left, the more traces of breakdown products will be left behind when it is eventually removed.
Sadly, although I'm a scientist (of sorts) I'm no chemist and I have absolutely no way of proving or disproving my theory, but I would suggest that anyone with this problem acts sooner rather than later to get a replacement keyboard, the old keyboard should be discarded immediately and not kept around as a spare, and the iBook should be carefully cleaned before the replacement fitted.
Any suggestions for a suitable way of cleaning an iBook?
Bob