Details
Major Description
The .dsp and .dsw files in CVS contain LF(\n)-only .dsp and .dsw files which
results in MSVC6 silently failing to read them.
The solution is simple: check out and do
$ find . ( -name '.dsp' -o -name '.dsw' ) -exec unix2dos {} \;
to fix the line-endings and
$ find . ( -name '.dsp' -o -name '.dsw' ) -exec cvs admin -kb {} \;
to put the binary flag on all of them
You'll have to re-commit the files to make it stick.
I've just done the former of the two and it fixed the problem.