Are you referring to Cloud9 forum ? I guess so because, if you had problem with this forum, you wouldn't be able to post here...
Forum activation is usually always automatic but, even here, we sometimes have problems with some ISP, that blocks our mail server so, the forum activation message never reach the user, because the user's ISP has blocked email coming from our domain.
This usually happens because some *other* website that, incidentally, is using the same ISP we use, was caught spamming so, the user ISP blacklisted the whole domain, just to be sure. In our case AT&T is a problem here: AT&T (and subsidiaries) users can't register to this forum. It might be a similar problem happened with your ISP and Cloud9. The easiest solution would simply be registering with another email, for example Yahoo or Gmail...
Regarding your problem, if you are using AES and patched FS9 for >2GB, there's a discussion going on here on Aerosoft forum about this issue:
http://www.forum.aerosoft.com/index.php?showtopic=17418If you haven't patched FS9 and not using AES, perhaps you just exhausted memory, usually because of a very large airplane addon, since the largest ones, combined with large AI packages and terrain scenery addons, will have problems fitting into 2GB of RAM. That's why people are patching FS9, which in turns creates other issues as well...
However, I kindly ask you to continue this discussion on Cloud9 forum, once you succeed activate your account, this is FSDreamTeam forum, and we would like to continue it keep it this way.
It's ok to discuss Cloud9 products, though, when the interaction between those and FSDreamTeam might create unexpected issues (all are easily solvable).
For any issue regarding Cloud9 product activation, forum activation and such, basically everything that covers your personal data (orders, emails, etc.), since we never were part of that company, we can't access that data, so you'll will need to contact Cloud9 for anything related your previous order, or access to the forum.