The Dropbox process constantly clocks more than 50% CPU usage sometimes going up to the higher 80s and 90s. At the same time it does not even upload/download the files it is supposed to. The progress is stuck at the same point and the dropbox daemon has not uploaded/downloaded more than one file in the last 24 hours. We are only talking about small files like pictures (~ 4-10 MB each). The effect this has on my laptop is that it overheats, sometimes with core temperatures up to 15-20 degrees above normal. The CPU utilization and temperature fall noticeably after I kill the dropbox daemon.
I have had this problem for more than a week now. I am using Xubuntu 12.04. I have more than enough local disk space available (8 GB in the disk where home and root are mounted) and 20 GB free space in my Dropbox account. I have 2 GB RAM.
I have also tried the following process (mentioned in this question: Dropbox is taking too much CPU time. How can I fix it?):
sudo apt-get purge nautilus-dropbox rm -r $HOME/.dropbox* sudo apt-get install nautlius-dropbox
But it made no difference to the problem at hand.