Hi, Can someone help me out. For some unknown reason, my SL started asking me for administrator password every time I want to install or delete something. Basically I can't do anything now because of this. Why does SL ask me for a password when I didn't even set one. Is there a way to solve this or am I stuck with having to reinstall SL. Thanks. Alex EDIT: I am such an idiot. I may have set a password after all. Went to system preferences and opened up account. On hint, I had the answer. All ok now.