Lets face it most of us tend to search MSDN using Google.  It's not uncommon and regardless of what we think about censorship politics etc, and although MSN Search is improving at this point old habits die hard.  So for about the past day or so I've found that some (but not all) of my Google searches into MSDN result in a page which is totally missing the formating for MSDN.  For example:

msdn2.microsoft.com/en-us/ library(d=robot)/ms173150.aspx

About the second or third time it happened I looked at the url and realized it had that (d=robot) string embedded in it.  Recognizing that search engines use 'robot' browsers to surf and index the web I removed that string from the directory hierarchy of my search result and lo and behold there was the formatted page which was human readable.

Don't know if Google isn't accounting for their robot or Microsoft has suddenly redirected robots (my suspicion) in order to better scale traffic.  But if you suddenly get an unformated MSDN page - look for the d=robot string in your url and make it go away...