>>I think it should not concern you. Probably Evaluation version and Enterprise version is the same install. If you don't have a key, you'll check up the other option and it'll install evaluation version.
>>
>>I'm just guessing here (as I installed Developer's version), but it sounds very probably cause.
>
>Thanks, I am switching to the Standard version now.

I would try Enterprise if I were you. Should not be too hard to install. But you do need a server - you can not install it on a desktop.