Possible Duplicate:
How do I disable the guest session?
I gave my daughter's user account on Ubuntu 11.10 a password that only I know so that I could control her use of the computer if needed. She just logs in to the "Other" account on the log in page, defeating all my use of a password that only I know. Can anyone help with this problem? Is there any way to delete the "Other" account? Thanks in advance for any help.