Download the Vista Service Pack 1 exe from Microsoft (32-bit - http://go.microsoft.com/?linkid=8165717
64-bit - http://www.microsoft.com/downloads/d...6-dc0626dcdf10
). I believe I had this same problem and installing SP1 fixed it (I was trying to get the windows update to install it but ran into this problem). I'm not 100% sure it will fix your issue but it's worth a try!