Hi Bruce
Was any other software loaded in that came with your Headset, as it is possible that this software has now become your Default Media Player, rather then the Microsoft one.
If you wish to change it back, open Media Player, (With the shortcut rather then a music file) locate the tools menu, (It varies position depending on what version you have) select Options, File Types and click the Select All button followed by Apply and Windows Media Player will now be back as default.
Don’t know if the same in the USA but here in the UK, free computer courses are available for the those that have retired, so they tend to be a bit more computer Savvy then some countries, if they do the same in your part of the USA, enrol now as you will find you will love every minute of it. (As well as making new friends)
Hope the above helps, but if you still have problems my Skype name is abacusks1 so you could give me a ring and Ill see what I can do.
However as its now just gone Midnight over here in the UK, so I’m off to bed, but will be back online for a time in the morning. (UK morning that is)

Bill