[CentOS] authentication request

I am running centos 6.5 on a desktop. I have run it for a couple of years with few problems. Lately I have been getting a request for authentication popup that says something wants to upload software.  when I refuse and click on details it says an upload failed for lack of authentication. The only clue I have is an entry in /var/log/secure that says 


"may 19 localhost polkitd (authority=local): operator of unix=session:/org/freedesktop/consolekit/session2 FAILED to authenticate to gain authorization for action.org/freedesktop. packagekit system upgrade for system-bus-name::1.5(gpk-update-icon (owned by unix-user:<my user name>)

( please don't nit pick the format or spelling. I couldn't figure out how to cut and paste, and my handwriting is atrocious).

Everything seems to work OK but it is a pain, and maybe a security problem.
I would appreciate any help. I don't have a clue.,