MM has posted a couple of technotes on issues running DW on the new Mac OS
Tiger. If you are considering upgarding your system you might want to read
these first

Overall technote:
Dreamweaver compatibility with 10.4 technote:


Paul Whitham
Macromedia Certified Professional for Dreamweaver MX2004
Valleybiz Internet Design

Team Macromedia Volunteer for Ultradev/Dreamweaver MX