apache+php rehdat as4 上的问题

安装好以后 apache可以正常访问 也可以浏览php文件 但是我现在想建立用户的个人权限目录 我的httpd.conf 这样的 就是想实现localhost/~username/file.php 这样来浏览用户下面的目录文件
<IfModule mod_userdir.c>
#
# UserDir is disabled by default since it can confirm the presence
# of a username on the system (depending on home directory
# permissions).
#
#UserDir disable

#
# To enable requests to /~user/ to serve the user's public_html
# directory, remove the "UserDir disable" line above, and uncomment
# the following line instead:
#
UserDir public_html

</IfModule>

<Directory /home/*/public_html>
#AllowOverride FileInfo AuthConfig Limit
Options MultiViews Indexes SymLinksIfOwnerMatch IncludesNoExec
<Limit GET POST OPTIONS>
Order allow,deny
Allow from all
</Limit>
<LimitExcept GET POST OPTIONS>
Order deny,allow
Deny from all
</LimitExcept>
</Directory>
其他的都没改
如何浏览的时候 出现这样的错误
You don't have permission to access /~paul/test.php on this server.

Additionally, a 403 Forbidden error was encountered while trying to use an ErrorDocument to handle the request.

一看就知道权限问题 如何我作到paul的目录 chmod 777 －R paul 这样做了 也还是出现这样的错误 艾 以前chmod755 都可以拉 怎么现在777还没有权限访问啊 谢谢大家了