Minor issue;
After submitting username, email, password, the sign-up page redirects to:
http://lab.apertus.org/file/data/nq5pcrecelctlkyheun5/PHID-FILE-gyk3627n7h7evskn2c6n/project.png
Initially I forgot to put a real name and had to go back and re-enter the details. Can't see that this would be related though.
Confirmation email still appears and the account registers OK.