Please download the Classic Shell troubleshooting utility from here:
http://www.mediafire.com/download/3uker ... tility.exeIt will collect information about your system that can assist in troubleshooting problems. When you run the tool it will ask you to save a text file with the information. Some of the collected information may be sensitive (like what applications you have installed). If you wish to keep that information confidential, you can either upload the file to the FileDrop folder (see below), or archive it with a password, attach the archive in the forums and send a PM with the password to the user Ivo or GauravK.
Also, when you say it doesn't bring up the classic menu, what happens? Does nothing open when you press the Win key or does the Windows Start screen pop up?