I am having trouble with the sound on my computer. I restored to a previous date and now I have no sound and I am getting a error message that the DigitImg.msi needs to be installed from a disk. I do not know what this is or where to get it. The error reads: Error 1706 No valid source could be found. Windows installer connot continue. What do I need to do to fix this and what do I need to fix the sound problem? I have done the troubleshooting for the sound and nothing seems to work. HELP!!!!!!