Re-installing Dropbox

[ejc]

Hello,
I had a nasty experience trying to re-install DB. I had probably tried to install it and renounced a couple of months ago without finishing the importation of my thousands of files. I used the easy install option ("Lite software") and selected DB.
When it started to install it, it first told me that the DB folder had been moved and that i should put it back in the home folder.
Since i was unable to find any DB folder anywhere, I created one in the home folder, called Dropbox, as requested by the install process, and I re-launched the application and it started syncing and indexing.
As i was t ying to see the progression in the window called DB, i could not see anything, although the machine was showing some activity for 2 hours;
then suddenly i started to see on my laptop, where the DB is running on Win7, some notifications telling me that folders and files were deleted;
i stopped the program on the linux machine, contacted the online chat of DB, and indeed, the linux machine was deleting all my files
i just restaured and desinstalled DB (using synaptic).

Any explanation?
Is there any way to install DB on LL safely and locally?

Thanks!
E