VS.net 2008 Open Web Site hangs

VS.net 2008 Open Web Site hangs

I came across an issue in VS.net 2008 and VWD 2008 on Windows 7 where, when I open a File System Web Site the directory tree hangs for a minute or two. But, it only happens on certain directories and once it returns to normal I'm able to open and close the directory that got stuck without issue. Only if I close VS.net and reopen it does it hang again.