Problem importing blend file to unity

Hi,
I’m trying to import a .blend file into unity, but I get blank meshes(The objec a in the image).
If I export from blender to a .FBX file it works fine (NFJTrussSmall int the image).
1219959--50205--$Capture.JPG

Blender bars object has no mesh FBX is ok
![1219959–50206–$Capture1.JPG 356x188](upload://bVzFjmjTgg0qHsQFj1slmHbfMWb.jpeg)

In both cases I saved/exported the file to my assests folder.
I also applyed the rotation scale and transforms in blender before.

I am using blender version 2.66a and unity version 4.1.2f1.
My OS is windows 7.

I can work with manually exporting to FBX but it would be way better if i could get the the blend files working.

I found the solution to this!

When you save the file there is a check box to save legacy mesh format, once that is marked it works.

1220942--50333--$Capture.JPG