I am trying to help fix a friends computer (Mac, OS X v. 10.6.8). When trying to access cups through localhost:631 I get the main menu just fine. However when I try to access admin I get 404 not found. When trying to Google the problem I only seem to find people who cannot open the main menu, but who succeed just fine when manually inputing localhost:631/admin. This is not the case for me. Quite the oposite in other words.
I have confirmed that Cups is indeed running on the computer, but only because when trying to load cups I am told it is already active. I cannot seem to find it by running "ps -e". I can also unload cups just fine with no problem.
The problem arose after someone else tried to fix the problem before me. She was unable to connect to a printer at first only, but now we are no longer able to enter cups admin. She told me this new problem started when the other guys updated "something", but we don't actually know what. Overly confident tech support who just did stuff without informing the owner..
I thought about trying to reinstall Cups (which currently runs version 1.4 btw), but I am not actually sure how to do this on OS X.