Visual Studio 2003 .Net Linker Error

When ever I try to compile a CS app, the compilation runs smoothly and perfectly, but then the linking messes up.

Here is the output:

Code:

------ Build started: Project: CrystalSpaceSimpleApp, Configuration: Debug Win32 ------

Linking...
LINK : warning LNK4031: no subsystem specified; CONSOLE assumed
LINK : error LNK2020: unresolved token (0A00000E) ?SCF@iSCF@@2PAU1@A
LINK : error LNK2020: unresolved token (0A00001F) csString.__dtor
LINK : fatal error LNK1120: 2 unresolved externals

Build log was saved at "file://c:\Documents and Settings\jman\My Documents\Visual Studio Projects\CrystalSpaceSimpleApp\Debug\BuildLog.htm"
CrystalSpaceSimpleApp - 3 error(s), 1 warning(s)

---------------------- Done ----------------------

Build: 0 succeeded, 1 failed, 0 skipped

So, can you tell me what went wrong? Because I followed the documentation to the letter.