DisplayPort adapter cables are not supported on ThinkPad W700. Only the Single-Link DVI-D adapter cable is supported on the ThinkPad W701.
DisplayPort Monitor Cables include:
All ThinkPad W700/W700ds/W701/W701ds models.
The ThinkPad W700/W701 DisplayPort is a DisplayPort-only source, not a Dual-Mode source, and thus cannot support the DisplayPort adapter cables.
The DisplayPort adapter cables are supported only on systems that have a dual-mode source DisplayPort interface.
The ThinkPad W700's DisplayPort implementation is single-mode, not dual-mode, and adapter cables will not function. The W701's DisplayPort is dual-mode and can output single-link DVI-D when used with the appropriate adapter cable.
If the user wants to connect a DVI display to the W700, please connect it to either the Dual-Link DVI-I connector on the system, or to the Dual-Link DVI-I connector on the Mini Dock. On the W701, single-link displays can be connected with the appropriate adapter cable. Displays can also be connected to the system's dual-link DVI connector on the Mini Dock.
For a list of supported systems and graphic cards, go to: http://www.lenovo.com/support/monitoraccessories