How did you "switch" from Win 7 to Win 8? If you did an Upgrade, that is probably causing your problems. The Upgrade installation generally works well, but is not 100%. The Custom Install from DVD is the much preferred method to give pristine installations. The Upgrade is very dependent upon the original installation and installed apps.
I would suspect if you took the time to do a Custom Installation from a DVD, then re-install all your apps, that you would not be experiencing these problems.
If you did not make a DVD during your original installation, use the link at the top of your email receipt to start over. When you get to the spot where you have an installation option choose Install by Creating Media. This will download the ISO file to your PC and allow you to burn it to DVD or Flash Drive.