Exit the LogTag Analyzer software and delete the file "userprofile.dat" from C:Documents and Settings#USER#Application DataLogTag. In VISTA and Windows 7, this file is located in C:Users#USER#AppDataRoamingLogTag. You may need to change the display settings in Windows Explorer to be able to navigate to this file (Note: The Windows search feature will likely not find this file). Please refer to the Windows Operating System's online help. Once this file is deleted, the software menus will be displayed in English or the same language of the operating system, if LogTag Analyzer software includes support for that language. Please note, that other settings you may have made like Communication port settings or default chart parameters will be lost.