Unspecified error (MS Visual Database Tools) in SSMSEE

Hi all, I got some issue. Last few days ago, I downloaded Visual Studio 2010 Express Beta2 from Microsoft site and install it and tested the software. After that I found that my SQL Server Express 2005 is not working correctly. So, I remove/uninstall the VS 2010 and I need to install VS2005 SP1. You can read my previous error at here http://tinyurl.com/yzr3jhu (Sorry I made it tinyurl!) After that solved, now I got another issue. Here is the steps: 1. I open SSMSEE (For SQL Server 2005 Express) 2. I right click on one of my Database's Table and select "Design" 3. The error prompt.  > Unspecified error (MS Visual Database Tools) Because its in Urgent, I uninstall my SQL Server 2005 Express + Management studio and ...