I have recently upgraded my operating system. I have upgraded from vista to the windows 7 operating system. So now after the upgradation. I have started observing some strange problem with the sound files. The problem is during the startup and during the shutdown of the windows. What happens is that when I star the windows the opening sound comes as late as 30 seconds after I get into the desktop. Now during the shutdown it does not plays the audio or the sound which I selected. So what can be the issue behind it. Why is this happening? This happens everytime I shutdown and I startup the system. Any ideas then please do share it with me.