Error 11556: Can't share between some accounts on same computer
I can't get iTunes (11.1.3) Home Sharing to work with this one account on my computer (Mini, OS 10.8.5). I've enabled it OK in my main admin account, and in one other account, but in my daughter's account I keep getting the error message: "Home Sharing could not be activated because an error occurred (11556)"
I thought it might have something to do with the parental controld I'd set up on her account, but I turned them off and got the same error. I found one discussion suggesting it works to remove iTunes and reinstall it, but that seems drastic. I'm not even sure how to do a real uninstall, except for dragging the Application/iTunes icon to the trash. I hestiate to do that, considering all is working for the other accounts, but not this one.
Suggestions? Thanks.