I forgot to mention that apparently this 9.1/Dreamweaver conflict is limited to desktop Macs. After perusing the newsgroups, which have ALOT of people complaining about this bug, the common thread is desktops are affected and powerbooks are not. Probably has something to do with the ATI driver.
As of now, there is one fix that I've read.
Haven't tried it, as it involves opening all the .gif's, and resaving in Photoshop and removing one of the colors from the .gif table. Way too time consuming for me.
I'm disappointed. 9.1 seems rock solid so far, and I like the new features, even if they aren't monumental. But Dreamweaver is one of my three main applications. If it doesn't work right, I have to go back to 9.04.