I have both versions of Smart Basic installed on my machine. I do this so I can check an example on the lite version to ensure that it fits. However Dropbox cannot tell the difference and will always hook to the first one it was connected to. If you enable dropbox on a second copy and then click on the dropbox icon it will associate itself with the first one anyway and if you try and download it will download to the first version. Since they both look alike it is easy to get confused. To avoid this problem be sure and turn off dropbox in the version you don't want it to connect to. Use OPTION DROPBOX OFF to turn it off.
Dale