Captio borders.

Hello, I am using a Twenty Eleven child theme.
roymilburn.com
Afterremoving the caption border around my images and playing around with colour changes, I am left with an orange border around the caption itself. I do not like this. The problem is for the life of me I can not remember the code that made this happen. I was changing things in .wp-caption in css. Does anyone know how I can either remove this border or change it’s colour?
Many thanks.