I've got dual 8800GT cards in SLI mode.  nVidia's site tells me I have the most current drivers - v169.25, dated 12/20/2007.  However, Windows Update is telling me that there's an Optional update:

nVidia - Video - NVIDIA GeForce 8800 GT --- dated 2/27/2008

Should I install the Windows Update, or leave well enough alone?  Thanks in advance!