Yes, we tried it today and i cannot play with his account so it has something to do with this one useraccount... Strange! Ok, not an Arcade Problem. You don't have an idea, where i can search, right?
I also tried to repair useraccounts via vbadmincp...
--------------- Added [DATE]1202767043[/DATE] at [TIME]1202767043[/TIME] ---------------
We've got it!
The user had an "?" in his username and i guess the db import caused a problem with the utf-8 characters that the new database used. I had to convert the chars with a tool.
Now his name contains an "ae" instead "?" and it works.
Not an Arcade Issue