Found this info on the Lenovo website ..
Some system boards ship with the AGP slot disabled and plugged. These slots have been disabled at the chipset level and do not work. The plugs should not be removed.
Some AGP adapters use a retaining clip, which must be moved to one side to prevent damage when removing the adapter.
Setting the video resolution to 640x480x16 colors in Device Manager is not the same as changing the hardware to a VGA adapter. You must change the adapter selection from the installed adapter, i.e. ATI, nVidia, or Matrox, to a standard VGA adapter in the Display Properties dialog box.
Some Intel chipsets uses Dynamic Video Memory technology (DVMT) for video memory. The initial memory count can indicate less than expected system memory count.
Click here to learn more about DVMT.
Signal cable extensions and keyboard, video, mouse (KVM) switches are not supported.
http://www-307.ibm.com/pc/support/site.wss/document.do?lndocid=MIGR-4Y6LGT