Image Problem

Hello,
I am repeating a small image horizontally, it has a drop shadow on the original image, but when it is repeated there are small gaps in between each image. What is causing this to occur? http://www.zidub.com/images/example.JPG

Would it be possible to post the single instance of the image? Without the repeating?

Yeah, here it is. It is simply a 10 or 20px by 20px image being repeated.

http://www.zidub.com/images/example2.png

If you look closely at this image, the bottom shadow area is slightly antialiased on each bottom corner. Looks good on the single image but in repeat mode it shows up as those white gaps.
Here it is "repaired". Try the repeat with this:

http://sandbox.intermediawebdesign.com/BayState/repaired.png

That did the trick, thanks I never would have noticed that.