DFS Stop Responding at Bootup

Hi
I have DFS on one of my server that is running Server 2003. A few days ago, I notice that DFS is running, but I can?t access any of my links, so I restarted DFS Services and everything work find for that day. Every time I restart the server, I have to log in and restart DFS Service, can anyone say why?
I am running Server 2003 SP2. This is my primary DC. Also has DNS, AD on the same server.

Please help
Thanks