Mac keeps rebooting when it reaches the grey window with the apple

Hello,
My Mac G5 keeps rebooting, it cannot reach the desktop.
Yesturday, I changed the read write options on the macintosh hd (I put everyone on read write so others on the network could get access to all the files, I pressed on the wheel on the botton and "replicated" to all files in the hd).
When I restarted the system, it hasn't booted to the desktop since.
Is this what caused the problem???
How can I fix this?
I tried the utility from the install dvd to repair the rights, but it does not work, if I scan again, I get a very long list containing mainly files from the library folder.
Thanks

Michael.Pasteris wrote:
Hello,
My Mac G5 keeps rebooting, it cannot reach the desktop.
Yesturday, I changed the read write options on the macintosh hd (I put everyone on read write so others on the network could get access to all the files, I pressed on the wheel on the botton and "replicated" to all files in the hd).
doing this completely killed your system. you now have no choice but to do an archive and install.
http://support.apple.com/kb/HT1710?viewlocale=en_US
you should NEVER use "apply to enclosed items" button on ANY system created folders or on the startup drive. that includes btw such things as your Desktop folder, your home folder etc.
and you shouldn't even try having your whole drive read+write by everybody. that's very bad from security point of view and other users have no business having read+write access to your entire system. make a folder shared and give them read+write access to that.
When I restarted the system, it hasn't booted to the desktop since.
Is this what caused the problem???
How can I fix this?
I tried the utility from the install dvd to repair the rights, but it does not work, if I scan again, I get a very long list containing mainly files from the library folder.
Thanks

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