answer:It seems as though 10.5.3 is a bitty iffy for some. I myself had a few problems with my install (but got my iBook working in the end) and a similar thing happened to bluemukaki. I reckon the best thing to do would probably be to try the combo update (available here) and see if that makes any difference – I know, it’s a bigass update… If you can’t be bothered dowloading that, the other option is to simply wait it out until they release the next version, or one with more bug fixes. The downside of this is that you might have to wait a while, but then again 10.5.3 isn’t essential if you aren’t/weren’t experiencing too many bugs/problems with 10.5.2.