Stepped up to version 6 from version 4 a few months ago -- a "must" upgrade when moving up to Mac OS 10. So far its has been good. Things work. I enjoy the way that GoLive 6 leaves my code alone (GoLive 4 would auto-rewrite the page upon any editing.) Right now I am having trouble printing source code. I would think that anyone using GoLive 6 professionally would also be using Mac OS 10.2.x. I hope to see Mac OS 10-based updates to this application because right now it appears to be Carbon not Cocoa.