Hi,
the link behind "Library" seems to be broken for some time already. It leads me to
http://msdn.microsoft.com/en-us/library/vstudio where I get a "Content not found" / "Page not found" page.
You should be able to recreatethe issue while reading this post (at least if you read with an en-us encoding. If not correct the url in your browser by substituting your local with en-us) through simply right click on Library and choose "open in new tab".
With kind regards,
Konrad