The local administrator account in Windows 2008 is hidden. In case you're having problems using Presstore on a Windows 2008 machine with Active Directory domain accounts, try to enable the Local Administrator account and use that one instead. Please refer to the following article on this external web page for details on how to enable this account:

http://windows2008serveradmintools.blogspot.de/2008/05/how-to-activate-local-administrator-on.html

(We have not tested this. Please use at your own risk.)

Feedback from a customer:

"It works know, without having to login locally. The problem was that the domain admins group was added to the local admin group but presstore didnt like that, so i added my domain admin user to the local admin group as well. And that did the trick."

Another customer's feedback who ran into a similar issue:

"... Problem is that Window 8 (much like windows 2008 server) has a hidden 
administrator that you have to enable,
once you've done that (and really logged in as that user, so windows 
really created its settings)

You can go back to your normal user and login into presstore with that 
administrator.
"