Does length of directory of an image matter when giving it as an argument in C++ ?

See more:

C++

VS2010

OpenCV

To display an image:

#include <iostream>
#include <highgui.h>
using namespace std;
int main( int argc, char** argv ) {
IplImage* img = cvLoadImage( argv[1] );
cout<< argv[1];
const char* name = "window1";
cvNamedWindow(name, 0 );
cvShowImage( name, img );
cvWaitKey(0);
cvReleaseImage( &img );
cvDestroyWindow( name);
}

If I keep image at C:\Users\si765906\Documents\car.jpg , the output is correct. But if I keep it at C:\Users\si765906\Documents\Visual Studio 2010\Projects\new\car.jpg , I get a grey screen. I am using VisualStudio 2010 Express edition and am adding the argument from the properties.
Also, in printing argv,
in the first case, I get
C:\Users\si765906\Documents\car.jpg

While in the second case,
C:\Users\si765906\Documents\Visual

Please help/explain.