Part decal disappears after check-in

Hi,

I am using Creo 8 with PDM (windchill 12) 

I am putting a decal on a part that exists in my PDM. I revised the part (rev 04) and went to view -> appearances -> edit appearance -> decal, and selected an image file from my drive.

When I look at the model and the drawing, the decal appears just fine. So I go to check in my model. 

After check in and publish, I remove the part from my workspace and add it again from the commonspace. 

Now when I open the part and the drawing, the decal is gone. Instead I see a grey color appearance where my decal was. 

Any inputs on what is happening and how I can fix this? I need the decal to show up on my published PDF. 

Thanks!