Lenovo ThinkPad T400s series User Manual page 26

If you press Fn+F5, a list of wireless features is displayed. You can enable or disable the Bluetooth features with a single click.
In Windows XP, you can use either ThinkPad® Bluetooth with Enhanced Data Rate Software, or the Microsoft® Bluetooth software. By default,
ThinkPad Bluetooth with Enhanced Data Rate Software is installed on your computer.
Using Bluetooth for the first time on your computer
If this is the first time Bluetooth has been used on your computer, use either of the following procedures:
1. Double-click the My Bluetooth Places icon on the desktop, or the Bluetooth icon in the task bar. The Start Using Bluetooth
window opens, and some virtual device drivers are installed automatically.
2. Wait until the installation of the drivers is complete.
OR
1. Right-click the My Bluetooth Places icon on the desktop, or the Bluetooth icon in the task bar.
2. Select Start Using Bluetooth. The Start Using Bluetooth window opens, and some virtual device drivers are installed automatically.
3. Wait until the installation of the drivers is complete.
Some other virtual device drivers will be installed on demand when you use certain Bluetooth profiles for the first time.
Using the Microsoft Bluetooth software
If you are using Windows XP and want to use the Microsoft standard Bluetooth features, install the software by following the instructions in
Installing the Microsoft Bluetooth software in Windows
For information about how to use the Bluetooth function, do as follows:
1. Press Fn+F5 to turn on Bluetooth.
2. Click Start --> Control Panel.
3. Click Printers and Other Hardware.
4. Click Bluetooth Devices.
5. Click the Options tab.
6. Click Learn more about Bluetooth Settings.
XP.