Hi, Can I lock, opera = when I'll open opera I must write code = because I don't know if is it possible... thx
Or: I have an idea(it is better than in first part): how can I do opera for two or more persons like in icq, but it don't have to be some password... tahnk you

I got this from here -> Security and Privacy in Opera

"Shared Computer

First of all, when installing Opera on a multi-user Windows computer, make sure to opt for separate user directories during install. This will ensure that your settings, e-mail, Wand passwords, history, and so forth, are stored in your own user directory only. Remember that this may be of little use if other users have administrator privileges on the same machine, unless you protect your files by other means."

If you haven't gotten the newest version of Opera, now would be a good time to upgrade and set your own profile.