This might be a bit weird question, but I\'ll give it a shot:
HELP, my Visual Studio 2008 / ASP.NET is giving me GERMAN error messages. Besides the fact that transla
Go to the Control Panel -> Software. There are language packs for .NET (for each version one). Uninstall them.
Check your system-wide language preferences - 'Regional and Language Options' in WinXP Control Panel. I have found when using VS that my keyboard would go from UK to US mode or even French because the SHIFT + ALT + F10 keystroke is used by VS for showing some context menus and it is also used by Windows as the keystroke for changing system language.
UPDATE: Check your system-wide language preferences. If necessary install a language pack, though I can't find any on MS Download Center. Otherwise install an English language verison. I am about to download VS 2008 C# Express and I have the option of English, Chinese, French, German, etc.
You have to switch the user interface language (UI Language) to en-US via Web.Config. This will make sure they are in English.