Now copied to hosting at godaddy and was able to do the initial setup OK, tables are all set up in the DB etc.

I can create a new forum and category, but I cannot create an access mask, or register a new user. I get the following error:

Security Exception

Description: The application attempted to perform an operation not allowed by the security policy. To grant this application the required permission please contact your system administrator or change the application's trust level in the configuration file.

Exception Details: System.Security.SecurityException: Request for the permission of type 'System.Security.Permissions.FileIOPermission, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed.

Source Error:

An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.

Stack Trace:

[SecurityException: Request for the permission of type 'System.Security.Permissions.FileIOPermission, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed.]

System.Security.CodeAccessSecurityEngine.Check(Object demand, StackCrawlMark& stackMark, Boolean isPermSet) +0

System.Security.CodeAccessPermission.Demand() +58

System.Reflection.Assembly.VerifyCodeBaseDiscovery(String codeBase) +118

System.Reflection.Assembly.get_CodeBase() +35

System.Web.Handlers.ScriptResourceHandler.GetCodeBaseWithAssert(Assembly assembly) +31

System.Web.Handlers.ScriptResourceHandler.GetLastWriteTime(Assembly assembly) +36

System.Web.Handlers.ScriptResourceHandler.GetAssemblyInfoInternal(Assembly assembly) +61

System.Web.Handlers.ScriptResourceHandler.GetAssemblyInfo(Assembly assembly) +62

System.Web.Handlers.RuntimeScriptResourceHandler.System.Web.Handlers.IScriptResourceHandler.GetScriptResourceUrl(Assembly assembly, String resourceName, CultureInfo culture, Boolean zip, Boolean notifyScriptLoaded) +325

System.Web.Handlers.ScriptResourceHandler.GetScriptResourceUrl(Assembly assembly, String resourceName, CultureInfo culture, Boolean zip, Boolean notifyScriptLoaded) +33

System.Web.UI.ScriptManager.GetScriptResourceUrl(String resourceName, Assembly assembly) +89

System.Web.UI.ScriptRegistrationManager.RegisterClientScriptResource(Control control, Type type, String resourceName) +111

System.Web.UI.ScriptManager.RegisterClientScriptResource(Control control, Type type, String resourceName) +9

I wrote to GoDaddy support to see if they could offer up any solution.

However, the weird thing is now suddenly it works. I have not done anything to the site since last night when it wasn't working and I posted this message. I had tried it a few times from a few different browsers. Now today it works. Not sure what changed.

I believe 1and1 has enforced all asp.net to run under "Medium Trust" - that said, if you try to update trust level from web.config it won't work as 1and1 has disabled overrides.

Any update your end?

Thanks