The same by me. I run two installations on two different servers, see config below. On both Installations are two languages, the default and German-Swiss (DE-ch). On Server 1 it doesn't matter which language I choose, the labels on Admin --> Site settings are not complete (Page {0} of {1} instead of the real label and so on). On Server 2, the labels are only correct by choosing the language DE-ch. If I change to default (EN-us) the labels are also missing.
If you've got a solution for this behaviour, I'm interested.
Reto
Configuration:
DotNetNuk Version: 5.1.2
Server 1:
Path: /portal
.Net Framework: 3.5 (Host --> Host Settings)
Host --> Dashboard
Microsoft Windows NT 5.2.3790 Service Pack 2
Microsoft-IIS/6.0
.Net Framework 2.0.50727.3082
Database: Microsoft SQL Server 2000 - 8.00.760 (Intel X86) Dec 17 2002 14:22:05 Copyright (c) 1988-2003 Microsoft Corporation Desktop Engine on Windows NT 5.2 (Build 3790: Service Pack 2)
Server 2:
Path: /portaldnn
.Net Framework: 3.5 (Host --> Host Settings)
Host --> Dashboard
Microsoft Windows NT 6.0.6002 Service Pack 2
Microsoft-IIS/7.0
.Net Framework 2.0.50727.4016
Database: Microsoft SQL Server 2008 (RTM) - 10.0.1600.22 (X64) Jul 9 2008 14:17:44 Copyright (c) 1988-2008 Microsoft Corporation Express Edition with Advanced Services (64-bit) on Windows NT 6.0 (Build 6002: Service Pack 2)