iTunes reopens immediately after I quit it?
I'm running the most recent update for Apple that is available, Mavericks. iTunes is 11.2.1.
After I've been using my Macbook Air for a little while, iTunes gets weird- it won't let me turn the volume up past like 30%, and when I try to quit it (and command-option-escape) it reopens right away.
I have no idea what to do.
If I restart my computer the problem goes away for a while, but it's always back.
Any help at ALL would be really appreciated.
Thanks.
MacBook Air, OS X Mavericks (10.9)