Yes, multiple times. Also re-installed Dropbox using the .exe file sent to me after I signed up.
There are a lot of other shenanigans:
I am working over VPN to a company server two states away, however as I work with large graphic and design files, I have the pertinant files from that server mirrored on an external drive, which is where I keep my working files. then upload them to the remote server at the end of the day.
My plan was to upgrade my existing personal Dropbox account to cover the size of the mirrored files and move them into the enlarged Dropbox folder, as an emergency backup. So in preparation for that I moved my Droppbox folder to my external drive.
At first I signed up for the 30-day trial for the 3TB Business plan, but discovered I would have to pay $37.50/month for that, as it required a minimum of 3 users (at this point, my Dropbbox icon had greyed out and was in "Update" mode). So I immediately cancelled that trial and instead signed up for the 14-day trial for Dropbox Pro, for 2TB. I noticed the desktop app was still stuck in Update mode, so I rebooted multiple times, and this morning after yet another reboot I installed the latest version of the app offered via link in the welcome e-mail.