Why is there a red line next to my logo?

I have an odd redline next to my logo, and I can't for the life of me work out why.

Take a look:
http://www.pdf-explode.com.au/index.php

Here's the red line I'm talking about:
http://www.bounceapp.com/66618

• I've tried looking at all the borders, there's no red.


• searched through backgrounds, no red.


• inspector can't inspect it.


• it's not in the image

Let me know if you can find it.

Thanks

Jason

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