Menus and toolbars missing in Word 2000

Delete the Word 2000 normal.dot file. If that doesn't fix it,

Quit all Windows applications. On the Windows Start menu, click Run. In the Open box, type regedit, and then click OK. Locate the following key by double-clicking the appropriate folders:

HKEY_CURRENT_USER\Software\Microsoft\Office\9.0\Word\Data

With the Data folder selected, click Rename on the Edit menu. Type a new name for the Data folder (for example, type OldData) and then press ENTER. On the Registry menu, click Exitto close the Registry Editor and restart Word normally.

Still not fixed? Look here:

support.microsoft.com/default.aspx?scid=KB;EN-US;Q242368&

Also try hittting the Esc button or Alt+V+U in case it is in full screen view.
Alt+V+T will bring up the toolbar list.