sorry bmike1, been busy elsewhere
bmike1@c521 ~ $ sudo apt-add-repository –y ppa:teejee2008/ppa
That looks to me like a double (joined, or long) dash in front of the "y ppa:teejee2008/ppa"
Is that so? It should be single.
When you entered the commands to add the repo, did it appear "to take"?
If it "took", it will display an output. I it didn't take, it will return you to the prompt, with no message that the operation has failed.
The following screenshot illustrates:
I first of all entered your command, note the long dash, did the password voodoo and entered, and was returned to the prompt.
I then entered the correct command and output resulted, indicating the command had "taken". In my case, the output would be slightly different to yours, as I already have Tony's repo onboard. The giveaway there is -
"gpg: key 2D0F61F0: "Launchpad PPA for Tony George" not changed"
So it is not a Mint issue, but rather a syntax issue. I suggest try it again, if you have not already.
Another (GUI) way of adding a repo is with Software Sources, as I described here, to pcpunk, #10 refers.
It shows both the correct "take" output (on gezakovacs cf teejee), as well as the Software Sources outcome.
In that post, with Software Sources screenshot, you can see a button at the bottom - "Add a New PPA" - this can be used as an alternative to Terminal commands.
A partial screenshot of mine is as follows:
...and you can see that the "bogus" command that returned me to the Terminal prompt had no effect.
I am reporting this issue to the author of the sudo manual, to see if he thinks it is a bug, and if he agrees I will report it to the bug people.