IE4 and IE5 were: * Faster than Navigator. * Had more features than Navigator, DHTML being the most important. * Were highly compatible with content written

IE4 and IE5 were: * Faster than Navigator. * Had more features than Navigator, DHTML being the most important. * Were highly compatible with content written for Navigator. Navigator ran on more platforms. So yeah, if you were not running on Windows, Navigator was superior.