hello
i installed iPC on my computer in last 2 days when its finesh everything was ok then i download the last update of mac leopard iPC then requred the restart and everything its ok.
then i download jaza and security from apple update when its finesh
requred restart after restart
give me this message
Boot error cannot find the file apple/library/system
then i put the iPC dvd the boot its ok when the first screen is come with apple logo give me this message and the computer is stop


so please what i have to do with this strange proplem
note: i format all the hardisk and the same message appered

thanks to all

[delete post please]