In mid-December 2013, TekSavvy changed its IPv6 configuration to favor DHCPv6-PD instead of static route configurations. DHCPv6-PD makes it really easy for users with household routers to configure their IPv6 (most recent routers support it out of the box, so enabling IPv6 is just two clicks away).
Ran into this issue for a client, and thought it could be useful to share: CiviCRM by default uses "dompdf" for generating PDFs. DomPDF is php-based and has some limitations, both for performance and font-support. CiviCRM also supports "wkhtmltopdf". Here's how to configure support on the server for Korean. This assumes that you have a dedicated/virtual server with root access, running Debian or Ubuntu.
The slides for my presentation on internationalisation and localisation are available on the CiviCon SF 2013 website.
If you write your own CiviCRM extensions, you probably have custom forms. The following describes how to display help icons and text in CiviCRM 4.3.