A text editor where in you can edit SYSTEM.INI, WIN.INI, protocol.ini, CONFIG.SYS and AUTOEXEC.BAT files.
There are times when you would want to unload any extra programs that may be loading when you start your computer. The C:\CONFIG.SYS and / or C:\AUTOEXEC.BAT could hold devices or programs that load and run in the background until they are needed or called for (like a screen saver, office toolbar, etc,).
At the beginning of the WIN.INI file check the 'Load=' and 'Run=' lines. If one or both of them are there, you can put a “REM” comment in front of any line that you feel is not necessary, one at a time, and then you can try running Navigator after restarting your computer. This trial and error process helps to find out the problem that is causing the error. When the errors are fixed, you can always remove the “REM” comments by using SYSEDIT again.












