You may be reading this article because you received the error message "There was a problem initializing Opera Mail. Engine Init() Failed". The most likely reason for this error message is that you have a single-user installation of Opera. When installing Opera on Windows, you are strongly advised to choose a multi-user installation. A single user installation will install your profile in the folder Program Files, which is not writeable unless you are the system administrator. One solution to the problem is to convert your single-user installation of Opera to a multi-user installation of Opera. But first, you need to be certain that you have a single-user installation. To do so, select the menu item Help > About Opera, and consider the paths. If your Mail directory is located in Program Files, you have a single-user installation of Opera. To change to a multi-user installation of Opera, follow these steps: take note of the file paths shown in Help > About Opera [1] close Opera open 'OperaDef6.ini' from the main Opera folder in a plain text editor change the line 'Multi-user=0' to 'Multi-user=1' save and close 'OperaDef6.ini' restart Opera, and you should have clean new profile folders under the 'Application data' folders for the current user take note of the file paths shown in Help > About Opera [1] close Opera