I get the following message whenever I click on "Manage" for the Admin account or my account.  All others work fine.  I can view the profile information, just can't "Manage" it.

Thanks!!

Server Error in '/' Application.
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Unable to validate data.
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.Web.HttpException: Unable to validate data.

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:

[HttpException (0x80004005): Unable to validate data.]
   System.Web.Configuration.MachineKeySection.EncryptOrDecryptData(Boolean fEncrypt, Byte[] buf, Byte[] modifier, Int32 start, Int32 length, Boolean useValidationSymAlgo, Boolean useLegacyMode, IVType ivType, Boolean signData) +1081
   System.Web.Security.MembershipAdapter.EncryptOrDecryptData(Boolean encrypt, Byte[] buffer, Boolean useLegacyMode) +34
   System.Web.Security.MembershipProvider.DecryptPassword(Byte[] encodedPassword) +128
   mojoPortal.Web.mojoMembershipProvider.UnencodePassword(String pass, MembershipPasswordFormat passwordFormat) +46
   mojoPortal.Web.AdminUI.ManageUsers.PopulateControls() +3808
   mojoPortal.Web.AdminUI.ManageUsers.Page_Load(Object sender, EventArgs e) +1213
   System.Web.UI.Control.OnLoad(EventArgs e) +91
   mojoPortal.Web.mojoBasePage.OnLoad(EventArgs e) +13
   System.Web.UI.Control.LoadRecursive() +74
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +2207