Since yesterday I became a customer of ESS v3 x64. While struggling to make the updating of virus definitions work (still waiting from help in the forum), I just discovered this beta programme (where updating hopefully works) and I am definitely considering to try it and provide proper feedback. I bet there are few users of the rare, outdated and obsolete platform of XP x64 (if you know what I mean...) After having read all the posts on this forum (ESS v4) and realising there is rather conflicting information, I would appreciate if someone would be so kind as to provide authoritative answers to the following: 1. Should users of v3 (x64) uninstall it completely before installing v4 (x64)? Or can we just install v4 over v3? 2. Should we use our customer credentials, leave them blank or use updv4/updv4test? 3. When will the beta expire, and what will be the proper procedure to install the new version of the beta? 4. How will we be notified about a new version of the beta? 5. If I decide to abandon my v3 license, in favour of a v4 license, how can this be done? Thank you very much in advance!