I'm running Windows 7 Ultimate, Deamweaver CS4 both with full patches/updates.
I had a template, without any menus (just images that linked to pages). Then as the website expanded for the next rev, there were a bunch of pages to be added, so I inserted the menu using CSS Menu Writer 2.02
I will retry using 2.03 and let you know. It's not a big deal for me, I was able to get around it, but am more than happy to provide what info I can if it is a bug and not just me being an idiot...
If it happens again, I will zip up my template and supporting files and get them to you so you can test on your end. Maybe my template is banged up somehow.