I altered the modifying dates on my files. Will my files and updates be safe once I resume the app?

sohaibh wrote:

If I delete all the pictures on dropbox from the web interface, and run the sync, will it sync the pictures from my hard drive back to drop box, or will it delete pictures from my hard drive as well?

It would probably delete the local files as well. Here's how I would do it.

First, as a precaution, back up all of the files in your local Dropbox folder to a second location. On the Dropbox website, go to your Security page and unlink the computer from your account. As an extra precaution, I would uninstall Dropbox from the computer, then rename your local Dropbox folder to Dropbox_OLD or similar.

At this point there's no connection between your computer and Dropbox and you can safely delete the files in your account without them deleting the local copy. Once your account is empty, reinstall Dropbox and let it create a new, empty Dropbox folder. When the install is done, move or copy the files from Dropbox_OLD into the new Dropbox folder and allow them to sync. This will take a while so just let it work.

Just to be clear, I wouldn't do this for just the pictures in your account (assuming you have more than just pictures). I would delete everything from the account and start over as if it were brand new. As long as you back up your files first, there's not much risk at all.