PC Recommended System Requirements

• PC Pentium 4, 1.5 GHz or greater
• RAM 512 MB or greater
• Windows XP or Windows Vista
• Internet Browser (Internet Explorer 7.x, Firefox 3.x, Opera 7.11+)
• Adobe Flash Player 9.0 Internet Browser Plugin
• * High-speed internet connection.

Mac Recommended System Requirements

• Mac Intel processor 1.2 GHz or higher
• RAM 1 GB or higher
• OSX 10.3.9 or higher
• Internet Browser (Safari 1.5+, Internet Explorer 7.0+, Firefox 2.0+, Opera)
• Adobe Flash Player 9.0 Internet Browser Plugin
• * High-speed internet connection.

* Stand-alone versions can be produced for institutions without an internet connection. However disconnected versions will not have access to the class creation, assessment and reporting tools.

Coming soon!

Q: I cannot see some of the text on the menus?
A: This is the result of a bug in Flash Player 10 which Adobe released in October 2008. This can be corrected by uninstalling Flash Player 10 or by reinstalling Flash Player 9.0. Flash Player 9.0 can be downloaded by clicking on the button below.

The original version of GDL (release November 2007) is referred to as GDL versions 3 (GDLv3). We will continue to support version 3 and version 3 users. To access the GDLv3 support pages please click on the following link: Access GDLv3 support