A colleague of mine is having trouble saving files to our shared dropbox. Her external harddrive had 1GB left out of 2TB, however she couldn't free up any space, despite changing sync to online or even removing sync of specific folders in selective sync. I looked at her .dropbox.cache which had over 1,3 TB worth of files, somehow clogging up her harddrive. The problem seems to have faded now, but I'm unsure of why her cache isn't cleared more often. It seems as if it's never been cleared.
I've reinstalled dropbox twice on her PC in the past 3 months due to not syncing correctly, and I'm confused as to why the cache hadn't been cleared by then and why it still doesn't. Is there anything I can do?