On my HTC EVO, all of my photos from the gallery suddenly moved to Dropbox. They are no longer in my gallery nor my SD card. If I unlink Dropbox from my phone, will my photos be deleted or will they move back to my gallery?
I actually had the same problem recently. It might be one of those, "It's a feature, not a bug" things. I had my Dropbox associated with my desktop computer. When I deleted a folder of pictures from my computer, it deleted those pictures from my dropbox all together.
This seems like quite a mistake, as deleting a local copy should not delete the remote copy on Dropbox.
You should be able to restore your deletions on the Dropbox website. I was able to recover everything I deleted. It doesn't actually delete your items for a long time (scary).