[SCCM / SMS] SMS无法分发软件的问题

我在域中的一台服务器上安装了SMS服务器（非DC上，DC和SMSServer都是用的Windows Server 2003），安装好后可以发现客户机，可以安装客户端，其它如硬件清单，远程协助也没有问题。但是一直无法进行软件分发。我发布一个软件包后，客户端都没有任何反应（客户端的软件分发代理已经启动）。
          检查发现Site Stutas下有错误信息,Component Status前是个叉，Site System Status正常。

Component Status中有个错误信息如下：
everity        Type        Site code        Date / Time        System        Component        Message ID        Description
Error        Milestone        AVS        2006-5-12 0:00:19        SMSSERVER        SMS_CLIENT_INSTALL_DATA_MGR        2920        SMS has detected that there are 1 computers in this site that are running Windows 2000 and above and have the SMS Legacy Client installed. The SMS Advanced Client provides for a more secure configuration. You should upgrade these computers to the SMS Advanced Client as soon as possible. You can use the web report and query titled 'Computers recommended for Advanced Client upgrade' to easily identify these computers and deploy the Advanced Client to them. Systems Management Server will no longer support the Legacy Client on computers running Windows 2000 or above beginning with the next release or service pack of SMS.

Component Status中有一些警告信息:例如
Severity        Type        Site code        Date / Time        System        Component        Message ID        Description
Warning        Milestone        AVS        2006-5-12 14:59:13        SMSSERVER        SMS_CLIENT_CONFIG_MANAGER        3015        SMS Client Configuration Manager cannot find machine "376ACD81C0ED471" on the network. The operating system reported error 53: 找不到网络路径。     Possible cause: The client is offline.  Solution: Verify that the client is connected to the network.



不知道哪位高手可以帮帮我，看看我的SMS为什么无法发布。先谢了。。。