Unable to access the openvpn keys folder as root

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http://askubuntu.com – I'm trying to install OpenVPN for BolehVPN. As per the instructions, I tried to choose my user key and cert file. But when I'm pressing the browse option and navigate to the keys folder, it gave me error unable to access the files... I've changed the folder permission to my username with read and write by this method http://askubuntu.com/a/6968/87032 However, when I'm browsing the folder I'm not seeing anything through open dialog box, where as I can see all my key files through file manager. How to fix this. (HowTos)