I have a version problem.
This is the error message I get:
The application is trying to load native components of version 5386 that are incompatible with ADO.NET provider of version 8080. Incompatible versions can lead to application instability and hence loading of SQL Server Compact has been aborted. Install the correct version of SQL Server Compact. Refer to KB article 974247 for more details.
What have I done:
I already had this problem before and was able to solve it with some luck. But now it's worse. These are the programs I installed - maybe I need another installation?
I'm running on Windows Vista
I reinstalled visual studio and everything works, possible that I messed up with some extra downloads, so delete everything from the visual studio programs and reinstall it. It was a long way trying to fix this!