Errors in my D3D - Can anyone help?

Hey
I am getting these errors when i try to compile my D3D, i get the errors at the "Linking..."

d3d8dev.obj : error LNK2001: unresolved external symbol "public: long __thiscall CD3DFont::RestoreDeviceObjects(void)" (?RestoreDeviceObjects@CD3DFont@@QAEJXZ)
d3d8dev.obj : error LNK2001: unresolved external symbol "public: long __thiscall CD3DFont::InitDeviceObjects(struct IDirect3DDevice8 *)" (?InitDeviceObjects@CD3DFont@@QAEJPAUIDirect3DDevi ce8@@@Z)
d3d8dev.obj : error LNK2001: unresolved external symbol "public: __thiscall CD3DFont::CD3DFont(char *,unsigned long,unsigned long)" (??0CD3DFont@@QAE@PADKK@Z)
d3d8dev.obj : error LNK2001: unresolved external symbol "public: long __thiscall CD3DFont:eleteDeviceObjects(void)" (?DeleteDeviceObjects@CD3DFont@@QAEJXZ)
d3d8dev.obj : error LNK2001: unresolved external symbol "public: long __thiscall CD3DFont::InvalidateDeviceObjects(void)" (?InvalidateDeviceObjects@CD3DFont@@QAEJXZ)
d3d8dev.obj : error LNK2001: unresolved external symbol "public: long __thiscall CD3DFont:rawTextA(float,float,unsigned long,char *,unsigned long)" (?DrawTextA@CD3DFont@@QAEJMMKPADK@Z)



Any help will be greatly appreciated,
Thanks.