Problem of Dynamic image at Runtime

I have designed a Report in Crystal Report XI where an employee's photo is shown in a detail section with his name and other details. I have used image object of Crystal report and destination and image name is passed dyanmically to Crystal report. The field contains "F:\image\EMP001.JPG" for EMP001 and so on...

Everything works fine till development time. All images are shown (JPEG Format), but as soon as I link this to vb.net program and generate EXE it stops showing any image.

Is this a known problem? Or is there something in my program which is conflicting with image desination at runtime?

If anyone has encountered such thing pl. let me know.

Thank