As you might have noticed we have had a few problems with the h3d.org site the last few days due to hacking attempts. We have been working to fix these problems and still are. The forum has been restored but all posts after April 29 have been lost. We have temporarily disabled new user registration while we are working on the problem.
In the process we have had to delete lots of user accounts. If your account has been mistakenly removed we are sorry and you will have to re-register.
Thank you for your understanding!