bad power supply.
no, just kidding. Check this, probably same thing.
http://support.microsoft.com/default...;en-us;Q321060
If you open Device Manager and view Network Adapters to view the properties of the "Raytheon RayLink Wireless PCMCIA LAN Adapter", you receive the following error message:
This device cannot find enough free resources that it can use. If you want to use this device, you will need to disable one of the other devices on this system. (Code 12)
CAUSE
The configuration information file that is used to install the adapter restricts the memory address range to load the driver to the first one megabyte (MB) of memory. Some computers that have many devices already installed do not have enough free memory below one megabyte to allow the driver to be loaded.
Windows XP
To resolve this problem, obtain the latest service pack for Windows XP.