When you wake a Windows Vista-based computer from sleep or when you restart the computer, you may receive a message that resembles the following:

Windows Mail can compact the message store. This may take up to a few minutes.

If you click Cancel, the message reappears the next time that you wake the computer or the next time that you restart the computer. This message occurs if the computer has the Windows Mail gadget for Windows SideShow enabled for one or more SideShow-compatible devices. This message occurs even though you are not using Windows Mail as the default mail program.

Note: This is the expected behavior when you are running Windows Mail.