I've been testing this on my virtual machine today.
I've found a value in the SQL database on the server that will cause the users to disappear.
It is possible this value was somehow changed by the software, however,
I'm not sure what would cause that to happen.
If you use something like Microsoft's SQL management studio express ( Free download available from microsoft )
http://www.microsoft.com/downloads/d...displaylang=en
You can use this to open the sql databases and check the tables.
The table is in the users database and it is called... dbo.USERS
Open the table and take a look at the values.
IF you have a value of "0" in the column "U-GROUP" you can change this value to 1 for the "Everyone' group or 2 for the "Administrators" group.
Be
very careful not change anything else.