Hehe, they tell a lot, and most of it is useless and rubbish.
Just download the correct Intel driver and install them. There's normally no need for a
Lenovo customized and outdated driver, and if you notice that something works worse after you've installed the Intel drives, just install the Lenovo drivers again.
Also is the Intel driver your only option, or? So better to try the Intel driver than to live with a not working tablet PC.
However, before you do it, you can also take a look at the Event view list in windows (can't tell you how to access it, because I use a german Windows, so google for it) and take a look at the Lenovo drivers or utilities which are responsible for docked/undocked profile. I don't know if there's such a utility or how it is called. Just make sure that the installed Lenovo software runs fine, maybe reinstall them, too, if you haven't done it already.