2005 SP2: failed to modify maintenance paln

After upgrading to SP2, I created a maintenance plan in the management studio using the wizard. The plan executes OK. But when I tried to modify it, I got the following error, and cannot load and modify:

Value cannot be null.
Parameter name: component (System.Design)

Please help ASAP.

Ed

Can you please submit this as a defect on Microsoft Connect? Please include steps to reproduce the problem, screen shots, and as much details information about the error message (sometimes you can copy the "stack trace" which is very useful to our dev team).

Microsoft Connect:
http://connect.microsoft.com/SQLServer/Feedback/

Paul A. Mestemaker II
Program Manager
Microsoft SQL Server Manageability
http://blogs.msdn.com/sqlrem/

|||http://forums.microsoft.com/MSDN/ShowPost.aspx?PostID=1266171&SiteID=1 fyi on this aspect.