I know that. what i meant was that because the current tiger os has got a bug where it can be installed in x86 and apple would fix that in another release, i think the imac got that new updated tiger already while the rest of the mac users didnt because they managed to think of new ideas, but havent secured it to prevent a "future cd release" to be installed on x86 systems, just be installed on apple systems...
just a thought..