Sony PCG-TR2A - VAIO - Pentium M 1 GHz User Manual page 188

Why does an exclamation mark (!) appear on the Device Manager tab in the System Properties dialog box?

The exclamation mark indicates there is a problem with the specified device. Make sure all cable and power
connections are secure.

You may not be using the most recent driver software provided by the PC Card manufacturer. Make sure the
necessary drivers are installed. You may need to remove the driver software, and reinstall it.
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