Have a look at

"Netscape 6 was formally released a few weeks prior to the Dreamweaver 4
release. This schedule did not provide sufficient time to test and fix every
compatibility problem found with this new browser. However, an updater is
now available which modifies the File menu and the Behaviors panel and also
allows these behaviors to work with Netscape 6."


"i2genius.com" <webforumsusermacromedia.com> skrev i meddelandet
> The MM_findObj() function generated by Dreamweaver 3 no longer seems to
work on new versions of Netscape Navigator.
> 1. Why is this? What is it that Netscape has changed? (And how dare
they! - don't they care about backwards compatibility? What about all those
websites that will stop working!)
> 2. What's the fix?