I was excited to finally migrate my 1Password install to the Mac AppStore. I’ve been slowly repurchasing through the MAS so that I can quit maintaining an inventory of all of my application licenses.
Unfortunatley, there is a significant bug with the MAS version. I keep my Dropbox folder on a secondary internal drive so as to save space on my SSD. The new 1Password assumes that Dropbox is always installed in the user folder. When trying to setup 1Password to sync through Dropbox I get a hairy error message.
Further, due to the high profile launch, some of the normal support routes are closed or bogged down. The email page says the wait is over 7 days and to use the forum. Fortunately the forum is very responsive.
The real problem is that it appears that due to sandboxing restrictions the MAS version will not support a Dropbox folder outside of the user folder. I’m crossing my fingers that the non-MAS version receives updates and migration to v4 when it is released.

Can you not symlink it? Or also try:
http://i.tuaw.com/2009/05/14/tuaw-tip-moving-your-home-folder-to-another-disk-or-moving-it/
I have done this with my MBP, so that I have the stock 128GB SSD in the boot position and a 3rd party HDD in the SuperDrive bay. My apps and OS are on the boot drive and everything else (including the Dropbox folder) is on the HDD. I have never had a problem with any MAS app accessing the dropbox folder on the HDD.
Couldn’t you move your Dropbox folder into your home folder and then symlink the other location into that? Keeps the files on the secondary drive but the “location” where 1P and the MAS want it…
Couldn’t you move your Dropbox folder into your home folder and then symlink the other locations in?
That seems like a drastic solution for one application. I tried creating a symlink of my Dropbox folder in my user folder but that does not solve the issue. It’s also not clear to me if Dropbox would support that model if things go awry.