Touchpad button assignments don't persist with Lenovo T400 on WinXP
You can turn the scrolling feature of that middle button off, and it becomes the middle click you want. See this question for details: thinkpad middle click
Touchpad button assignments don't persist with Lenovo T400 on WinXP
You can turn the scrolling feature of that middle button off, and it becomes the middle click you want. See this question for details: thinkpad middle click