Try disabling your modifications/plugins and see if you still have this problem.
Note: To temporarily disable the plugin system, edit includes/config.php and add this line right under <?php
PHP Code:
define('DISABLE_HOOKS', true);
If your mods where preventing the information from being saved, then you may need to make some posts to see if the issue is fixed with them off.
If you've got ticket support, then you should put in a ticket. They will need to be able to view your default style and turn off your mods, so supply that information for them.