There are some instances where, if you are using NOF 4.0 and are using the built-in “Rollover” feature, folks who view your site using a 3.x level Netscape browser may be presented with a page of Source Code rather than the actual HTML page which has the rollovers on it:

If this happens, check the “MIME” type setup in your NS 3.x browser. Netscape 3.x browsers don’t have the MIME type “.js” set up as a file type, and may default to displaying the source rather than processing it.

To fix this, you need to add something along these lines:

application/x-javascript       js

... add this to your MIME types file (or server) or .htaccess file for the domain. You may need to check the server settings for your specific server in this case.

{thanks to Team NetObjects member Prakash Thadani for this tip}