Looking for support for Supreme Commander? Here is the list of where you need to go depending on what sort of problem you are experiencing:

General Game Support

        http://info.thq.com/support/

SecureROM
Authentication issues.

        http://info.thq.com/support/

Direct-To-Disk
Online purchase installation issues.

        http://info.thq.com/support/

GPGnet Support
Please see our GPGnet Forums for GPGnet-specific support.

        http://forums.gaspowered.com/