Change Title of Administration Page

Does anyone know how to change the title of the Admin pages from "NopCommerce Web Administration" to mystore name or something else.  Currently my admin page gets lost in my tabs.

Thanks,
Douglas

Edit <title> tag in file: \Administration\main.master

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Thanks that has been driving me crazy.

How to change the title of the sub pages. after changed the title of the root.master it shows only in home page(default.aspx). Other page's title shows as "your store name" how can I change it. Thanks