Visual Studio Cannot Open Encrypted Package After SP1 Applied.

I have recently applied SQL Server 2005 SP1 to a dev machine, and my workstation, where it rpesumably updated Visual Studio. Since then I cannot open an SSIS package that contains some encrypted data, due to storing a database password. I get various error messages, and Visual Studio reports that it cannot load the package - I never get prompted for the password. My colleague who has not applied SP1 yet has no problem. Has anyone else encountered this problem, and if so do they have a solution ?

Errors below:

Error 1 Error loading 'Dim_Staff.dtsx' : The package failed to load due to error 0xC0010014 "One or more error occurred. There should be more specific errors preceding this one that explains the details of the errors. This message is used as a return value from functions that encounter errors.". This occurs when CPackage::LoadFromXML fails. . A:DevelopmentVisual Studio 2005Production_DeploymentSSIS_PackagesSales_DimensionsDim_Staff.dtsx 1 1


Error 2 Error loading Dim_Staff.dtsx: Failed to decrypt an encrypted XML node because the password was not specified or not correct. Package load will attempt to continue without the encrypted information. C:Dim_Staff.dtsx 1 1


Error 3 Error loading Dim_Staff.dtsx: Error loading value "<DTS:VariableValue xmlns:DTS="www.microsoft.com/SqlServer/Dts" DTS:DataType="7">12:00:00 a.m.</DTS:VariableValue>" from node "DTS:VariableValue". C:Dim_Staff.dtsx 1 1


Error 4 Error loading Dim_Staff.dtsx: Error loading value "<DTS:Variable xmlns:DTS="www.microsoft.com/SqlServer/Dts"><DTS:Property DTS:Name="Expression"></DTS:Property><DTS:Property DTS:Name="EvaluateAsExpression">0</DTS:Property><DTS:Property DTS:Name="Namespace">User</DTS:Property><DTS:Property DTS:Name="ReadOnl" from node "DTS:Variable". C:Dim_Staff.dtsx 1 1


Error 5 Error loading 'Dim_Staff.dtsx' : The package failed to load due to error 0xC0010014 "One or more error occurred. There should be more specific errors preceding this one that explains the details of the errors. This message is used as a return value from functions that encounter errors.". This occurs when CPackage::LoadFromXML fails. . C:Dim_Staff.dtsx 1 1