Thanks so much for everyone's advice & sympathy. I'll give changing my password a shot.
While it's only a game, what can I say I've kinda gotten attached to my little buddy.
I guess if I can't change my password I'll just have to make sure that I play every day in the middle of the night so the hacker (if there is one) can't high jack BlinkyMR from me.
I guess what I don't understand is why someone would want to do something like this for just a game. What if I was a kid? I think I would be devastated to find my account had been used by someone else. Luckily I'm not so this is just an annoyance.
The only good thing to come out of it is the hacker almost completed the first level of Balloon Attacks for me. And yep you guessed it, I hadn't unlocked that particular game yet. I discovered that today when I decided to look around to see what all had changed. But I still wish they'd leave my account alone.
Anyway, thanks again everyone.
Morgan