why is Dropbox showing me using 5.3Gb when i am actually only using 736Mb?

during the download from the given link, i went to the app already on my mac and saw that it had the circle with a line through it, which indicates an app that will not work on the system

so i inferred it was because i was using an olde computer running an olde OS

so, imagine my surprise when the new downloaded app, once installed, showed that i could use it

so, the email you have responded to, was sent prematurely

it has to be said however, that i had been instructed to use the app in order to delete the BACKUP folder i have never seen before, and on double clicking the app, all it did was to open the REGULAR Dropbox folder, without showing any way to access or delete the BACKUP

i have since been able to delete the lot, and maybe that was an overreaction, but i was having all sorts of nonsense going on, just trying to delete one file, since Dropbox no longer recognised the computer i originally used

so, i deleted everything apart from my REGULar folder

have to say, that this sort of nonsense put me off ever using Dropbox again, many moons ago 

ease of use, along with security, is the only way your system is ever going to be used by me .... frankly i do not trust cloud-based apps, nor cloud-based storage