Sony VAIO User Manual page 30

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Some PC Cards may require that you disable idle devices when using the PC
Card. You can use Sony Notebook Setup to disable devices. See "Displaying
the Sony Notebook Setup Screen" for more information.
Be sure to use the most recent software driver provided by the PC Card
manufacturer.
If an exclamation mark (!) appears on the Device Manager tab in the System
Properties dialog box, remove the software driver, and reinstall it.
You may not be able to use some PC Cards or some functions of the PC Card
with this computer. If you have difficulty inserting a card, check that you are
orienting the card correctly. See the manual supplied with your PC Card for
more information on its use.
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