Do you have a 'dropbox' folder in your ROOT directory?
This folder just looked fishy to me because it was on my device before I had even installed Dropbox on my Kindle Fire or even rooted it. I have never seen an app install a folder in the main root directory, they're usually in the sdcard folder or within another folder.
Only reason I'm suspicious is because I bought my KF 'open box' and am not sure if someone may have tinkered with it. Can anyone check if you also have this folder? Thanks.
Nexus One.. SGS Vibrant.. MT4G.. Sensation.. Galaxy Nexus.. Nexus 4