Second monitor on Laptop -- external monitor keeps defaulting to the right side

I have a T61 running Windows Server 2008 (yes as a desktop OS) and I use an external second monitor. The external monitor sits to the left of the laptop. When I sleep the laptop and then use it as a laptop it properly reverts to single screen mode. However, when I re-dock it thinks that the monitor is to the right of the laptop.

Every morning I need to re-open the display properties and put the monitor back to the left.

I seem to think that when the OS was fresh it properly remembered the setting but at some point it started to "forget" and revert to the default.

If I sleep and don't open the laptop but later just re-dock it works fine.

Vista (Server 2008 is essentially Vista SP1 with server features) has a service called Transient Multimonitor Manager that is intended to aide in handling changing the monitor configuration on the fly. My experience is that it is best not to use TTM.

There are a few utilities you can use to manually fix the configuration:

• Ultramon is what I use on my Server 2008 Workstation. It isn't 100% stable, but when it crashes, nothing has even gone down with it.
• Your video manufacturer's display manager. ATI has profiles support, Nvidia should have the same.
• OEM's utilities/drivers. Sometimes installing the OEM (Lenovo) drivers will fix these sort of issues or the OEM may provide their own Display Configuration utility. (Sorry, I don't have any experience with Lenovo).