Middle mouse button stopped pasting

[Kanwar Ranbir Sandhu]

Hi Everyone,

For some reason unbeknownst to me, the middle button on my mouse no
longer pastes texts into terminal windows, emails, or anywhere else it
use to after I highlight text.

Everything else on my mouse appears to work just fine. I haven't applied
any updates. Actually, I decided to update my desktop and rebooted after
this problem appeared.

I'm running Fedora 20. I know, it's getting long in the tooth. I am
actually going to install the latest and greatest soon, but not for
another month or so.

I'd really appreciate it if someone could point me in the right
direction to get this annoying issue resolved.

Thanks,

Ranbir

-- 
Kanwar R.S. Sandhu