Hi Lisa, the file you're running is the installer for the Conexant HD sound, so at the moment your sound loss each time is being solved by reinstalling the drivers. But this shouldn't be necessary to keep repeating.
How often does it happen? At this time the first thought I have is next time the sound is lost, look in the Device Manager and post back whether there is any ! symbol on the Sound section indicating a problem there.
However someone else may have run across this symptom before and have a more direct suggestion.
It might also be useful to know the Operating System version you are using (eg Windows XP Service Pack 2) and the brand and model of the computer system, as obtaining the latest version of the driver package may solve the problem.
Edited by Platypus, 28 December 2008 - 06:18 AM.