My operating system is Windows 98 Second Edition. I'm having trouble with the WAV clips that came pre-installed on my system - in folder Windows/Media - which are used to give sounds to all the windows functions like Windows startup, mail received etc. I'm not getting any sound from any of them. (In fact, for the most part, my PC is now strangely quiet most of the time).The Midi files are fine (opening in Windows Media Player when double-clicked). But the WAV clip files (opening in Realplayer when double-clicked), whilst appearing to play, give out no sound at all. Any ideas? I've tried the troubleshooters. I don't know what caused this to happen - but feel it may be connected with attempts to 'associate' a downloaded video clip with one or other of the players. Should these WAV clip files be associated with Realplayer as they now are? (Don't remember seeing it before).