My creative xfi extreme music would not work after a reboot unless I would restore defaults on it and that was getting old quick. Dont know if there is a fix but this works for me... I added this to the reg and now is all good. Windows Registry Editor Version 5.00 [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] "CtxfiReg"="CTXFIREG.EXE /FORCE"