[CentOS] Key auth question

I have a problem getting key authentication to work with one remote user 
(git), even though it works fine for the remote user "root". The remote 
file .ssh/authorized_keys is identical for both users - I cp'ed it from 
the root account to the git home dir.

On local machine (OS X, by the way) I have:
$ cd
$ ls -l .ssh
-rw-------  1 jussihirvi  staff   668 Aug 24 16:13 id_rsa
(the rest is omitted)

On remote machine (as root):
$ cd
$ ls -ld .ssh
drwxr-xr-x 2 root root 4096 Feb 11 17:45 .ssh
$ ls -l .ssh
total 8
-rw------- 1 root root 1768 Feb 11 17:45 authorized_keys
-rw-r--r-- 1 root root  631 Feb 11 12:30 known_hosts

On remote machine (as git):
$ cd
$ ls -ld .ssh
drwxr-xr-x 2 git git 4096 Feb 12 11:15 .ssh
$ ls -l .ssh
total 8
-rw------- 1 git git 1768 Feb 12 10:52 authorized_keys
-rw-r--r-- 1 git git  631 Feb 12 11:05 known_hosts

When, on local machine, I do:
	$ ssh root at remotehost
I get in without a password. But when I do
	$ ssh git at remotehost
I will be asked for a password.

What should I check?

- Jussi

-- 
Jussi Hirvi * Green Spot
Suvilahdenkatu 1 B 78 * 00500 Helsinki * Finland
Tel. +358 9 493 981 * Mobile +358 40 771 2098 (only sms)
jussi.hirvi at greenspot.fi * http://www.greenspot.fi