Hello Outdoor Barbie,
It sounds like you recently updated iTunes and now you try to play music but the music does not actually play. If you have not already, I would start by restarting your computer. If that does not resolve the issue, I would next use this article to help troubleshoot audio play back on your PC:
iTunes and QuickTime for Windows: Audio does not play or plays incorrectly
http://support.apple.com/kb/ts1362
Start with these steps, and if needed there are additional steps to use in the article:
If the issue persists after using all the troubleshooting from the above link, I would next use the following to remove iTunes and its associated softwares and install a fresh copy:
Removing and reinstalling iTunes and other software components for Windows Vista, Windows 7, or Windows 8
http://support.apple.com/kb/ht1923
Thank you for using Apple Support Communities.
Cheers,
Sterling