FrontPage will disable features and options based on the authoring or page
compatibility settings for the current page. By default, these usually start
as being both IE and Navigator compatible. A lot of the drawing effects in
FP rely on features that are IE-only, or didn't work in non-IE browsers at
the time of FP's release. You can adjust the compatibility settings by going
to Tools | Page Options and look under the authoring tab (if FP 2003) or
compatibility in previous versions of FP.
Hope this helps,
Mark Fitzpatrick
Microsoft MVP - FrontPage