Hi,  Newbie here, would appreciate help.  After installing, running the sql script and going to the logon page, when i try to login I get:  (any ideas)?  thanks, - John

Server Error in '/survey' Application.
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Value cannot be null.
Parameter name: value
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.ArgumentNullException: Value cannot be null.
Parameter name: value

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:

[ArgumentNullException: Value cannot be null.
Parameter name: value]
   System.Web.Caching.CacheEntry..ctor(String key, Object value, CacheDependency dependency, CacheItemRemovedCallback onRemovedHandler, DateTime utcAbsoluteExpiration, TimeSpan slidingExpiration, CacheItemPriority priority, Boolean isPublic) +11230178
   System.Web.Caching.CacheInternal.DoInsert(Boolean isPublic, String key, Object value, CacheDependency dependencies, DateTime utcAbsoluteExpiration, TimeSpan slidingExpiration, CacheItemPriority priority, CacheItemRemovedCallback onRemoveCallback, Boolean replace) +146
   System.Web.Caching.Cache.Insert(String key, Object value) +116
   Microsoft.ApplicationBlocks.Data.SqlHelper.get_DbConnectionString() +697
   Votations.NSurvey.SQLServerDAL.User.GetNSurveyUserData(String userName, String password) +335
   Votations.NSurvey.DataAccess.Users.GetNSurveyUserData(String userName, String password) +110
   Votations.NSurvey.WebAdmin.Login.ValidateCredentialsButton_Click(Object sender, EventArgs e) +488
   System.Web.UI.WebControls.Button.OnClick(EventArgs e) +115
   System.Web.UI.WebControls.Button.RaisePostBackEvent(String eventArgument) +140
   System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument) +29
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +2981

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Version Information: Microsoft .NET Framework Version:2.0.50727.4211; ASP.NET Version:2.0.50727.4209