Sony PCG-SRX99 VAIO User Guide (primary manual) User Manual page 154

My PC Card does not work.

Make sure the PC Card is installed properly.
 Make sure the PC Card is compatible with the Microsoft
 Use the Sony Notebook Setup utility to disable devices you are not currently using.
 Make sure any necessary drivers were installed properly. See
information.
Windows operating system.
® ®
Using the Application Recovery CD(s) for more
Page 154