An error occurred initializing the VBA LIBRARIES (65535)

When I want to open the Excel (97 version, Windows 98), I receive the
following message: "An error occurred initializing the VBA libraries
(65535)".When I click "OK" the Excel however opens, but can not open all of
my excel documents.The same message I recceive when I want to open in Excel
TOOLS/MACRO/VISUAL BASIC EDITOR. What has hapened and how can I resolve this
problem? Thanks, Jovan Milojkovic, Belgrade!