What in the world?!
Lately everything I download from Safari is useless because it will not let me launch the installer. I get Mac system error 1409.
What is that? Why? How can I fix it?
I am running Mac OS X 10.4
I think it started having these problems since my last Adobe update. Thanks Adobe!
Macintosh system error (-1409) * Named fork does not exist */ error
The info I have on this error means that some part of the OS is damaged or missing, (assuming that the HD directories & such aren't messed up).
You should use the Disk Utility to repair permissions on your Hard Drive. If that doesn't do it:
Try reinstalling the most recent combo update (10.4.11 I believe) from Apple. It's also possible that you will have to do an "Archive & Install" to repair your system files.