Can't Execute Package from BIDS Solution Explorer Post SP2 Install

Yesterday, SQL Server 2005 SP2 was installed on our DEV Server (Windows 2003 SP1 x86) and now I cannot right-click a package in the Solutions Explorer window in BIDS and Execute Package. When I do, I get the following error

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Object reference not set to an instance of an object. (Microsoft Visual Studio)

Program Location:

at Microsoft.DataTransformationServices.Project.DtsPackagesFolderProjectFeature.ExecuteTaskOrPackage(ProjectItem prjItem, String taskPath)

I know I could do this yesterday morning pre SP2. I've attempted this with a couple of different packages and solutions, so it is probably not a corrupt package (unless now they are all corrupt). I can execute in debug mode if I open the package first and then hit Start Debugging. However this is not always an optimal solution because I sometimes have many connected packages and sometimes what gets executed is not what is expected.

Your thoughts would be appreciated.

I'm having the identical problem. If I create a new package, it will work for a short period of time. I didn't measure the time precisely, but it is within 15 minutes and an hour or so. I appreciate your run-in-debug solution, but it is still not a clean fix.sql