Why does Drop Box not work after 10.8 upgrade? Setup: I got SMB shares on my old-old Mac Mini (running 10.5). I have Drop Box folder/directory with Write-only permission - it is used to be called "Dropbox". Recently I upgraded my laptop (MacBook) from 10.6 to 10.8. It was clean install - meaning format drive, install new OS.

Issue: Running 10.6 on my laptop, "Dropbox" use to work great - no issue whatsoever. Used it for over 5 years. However once I got 10.8, I can't seem to write to the remote (Mac Mini) SMB Write-only folder.

Scenario: Drag a file to "Dropbox" folder. Finder shows active window of copying a file. Once the transfer is done, I look under the folder (from a server side via VNC) and there are no file's.

I am certain the issue is with my laptop running 10.8, not a Mini. However I can't figure out what is wrong.
To be honest it sounds like it could be a bug in DropBox, and you should contact them to find a solution (and please post the solution here if they give you one).

Why do you have the DropBox folder on the server? Why not have a dropbox folder on the server and a completely separate one on your notebook?

Perhaps it's not what you want, but it seems like that should work perfectly. DropBox usually sends files across to the other machine within a few seconds.