When you boot your T400s on the dock and you have a USB device connected to the dock, you might not be able to completely shut down your computer. You computer might not progress past "System is Shutting Down".

ThinkPad system with the following configurations:

• T400s (Machine Type: 2815, 2823, 2808)
• Windows XP Professional
• BIOS 1.06, BIOS 1.1

Upgrade your Integrated Camera Driver to 1.1.0.15 or higher

Summary of Changes in 1.1.0.15 Integrated Camera Driver

• (Fix) Fixed the issue where machine that has latest BIOS level cannot shutdown or restart when many USB devices are connected and sharing same USB port with that of camera.