Check to make sure that klserver.exe is installed in \Windows\System32 (32-bit OS) or \Windows\SysWow64 (64-bit OS) and that it is running as an automatic service.
You can check to make sure that klserver is running by going to Command Prompt, typing 'net start klserver', and pressing Return. The system should respond that the klserver service has already been started. If you get a response that the klserver service has been started successfully, go to Control Panel>Administrative Tools>Services and make sure that klserver is listed and that it is set to automatic to make sure that it starts each time the machine is booted.
