Microsoft has released an update for Microsoft Windows MultiPoint Server 2010

This download contains an optional update that adds support for pointing devices that use absolute coordinates to connect to any MultiPoint Server 2010 local station. You should consider applying this update under both of the following circumstances:

You are using pointing devices, such as certain types of touch screens and interactive white boards, that use absolute coordinates to report the pointer location on the desktop.
You want to allow the pointing device to connect to a local station on the Windows MultiPoint Server 2010 system.

  Update for Microsoft Windows MultiPoint Server 2010 (KB2533528)