Still in trouble, replaced battery it came up with message found new hardware install sound CD even though sound was playing ok. Ran installation CD, CREATIVE X-Fi now no sound. Went through trouble shooting, When I got to sound & audio devices / properties/ Audio tab, shows REALTEK HD as Default can't select Creative not listed. Checked programes in add/remove REALTEK HD is listed but no size is given Creativ is listed as
100.08MB so it looks as though computer is trying to play sound from a non existant program but won't use the one that exists. Clock is OK. any ideas please.