I purchased Dreameaver CS5.5 very close to the debut of 6.0, so I got a free upgrade. But once 6.0 was up and running, I noted that 5.5 was till working. Should I uninstall it? I notice that 6.0 takes up 400 megabytes of space, but 5.5 occupies twice as much -- 800 megabytes. Will I "lose" anything if I uninstall Dreamweaver 5.5?