I have recently had extreme difficulty getting Norton System Works to install on my PC running windows ME. Having now succeeded after editing the registry manually (following instructions from Norton)my CDRW & DVD drives are both not working properly. They will read data etc. but will not play audio cds in either windows media player or real player. Media player results in error messages about digital/analogue settings but changing these has no effect. Form time to time an error also appears "sndsrvc caused an error in Kernell32.dll" Any help any one can give would be great. I apologise if this post is incorrect in any way, not enough info etc but I have never sought help this way before. Thanks.