Recently lost ability to save to SBS 2003

Just recently form one of my computers I had lost the ability to save to my Small Biz Server 2003. It give me an error saying the disk is full. I had make sure there are no permissions settings that would be blocking me and still has not work. I even reformatted the whole computer and change the NIC card and I still have the problem

I can save to other computers shares but specially to the server shares is that I can not save.

Any help or suggestions would be appreciated