1. Admin -> Skins then select "Restore Default Skin"
2. If you know your way around SQL you could use the SQL box in the host menu. The skin setting is in the table Tabs, you need to nullify the column SkinSrc for all the pages in the portal you wish to reset.
There is an easy way to clear all of these assignments IF you have database access. You can run the following query:-
UPDATE dnn_Tabs SET SkinSrc = null (WHERE PortalID = [PortalID)*
* Notes
- Optional clause to be used to only apply on a specific portal.
- Watch for the objectQualifier, the default is dnn_
The same concept can be applied to contains and the ContainerSrc column of dnn_Tabs.
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