*.config not found when running Unit Test

   Hello there,
I spotted a similar problem when using the Persistence Manager in a UserControl during Designtime in another thread. But it seems this problem also occurs when creating Unit Tests with VSTS2008. I have a blank Form and some generated entities in a Model. I tried to write a first Test (I'm working through the Developers Guide). When I try to run the Test, it fails with a IdeaBlade.Util.IdeaBladeException:

Test method Model.Test.tbl_OETest.FullNameTest threw exception: 
IdeaBlade.Util.IdeaBladeException: Unable to obtain a valid
configuration file on P1058.

Probing path: 

1) File: C:\Program Files\Microsoft Visual Studio 9.0\Common7\IDE\devenv.exe.config - not found

2) File: C:\Program Files\Microsoft Visual Studio 9.0\Common7\IDE\MSTest.exe.config - not found

3) File: C:\Program Files\Microsoft Visual Studio 9.0\Common7\IDE\vsdiag_regwcf.exe.config - not found

4) File: C:\Program Files\Microsoft Visual Studio 9.0\Common7\IDE\VSTestHost.exe.config - not found

5) File: C:\Program Files\Microsoft Visual Studio 9.0\Common7\IDE\VSTST-FileConverter.exe.config - not found

6) File: C:\Program Files\Microsoft Visual Studio 9.0\Common7\IDE\IdeaBlade.ibconfig - not found

7) Design-time execution detected - Will not probe for app.config or IdeaBlade.ibconfig in AppHelper

8) IdeaBlade.ibconfig fallthru - Default IdeaBlade.ibconfig used

9) Logging file: 

Stack Trace:
IdeaBlade.Util.IdeaBladeConfig.AssertNonDefaultVersion()
IdeaBlade.Persistence.PersistenceManager..ctor(Boolean pShouldConnect, String pDataSourceExtension, PersistenceServiceOption pPersistenceServiceOption)
IdeaBlade.Persistence.PersistenceManager.get_DefaultManager()
Model.Test.tbl_OETest.FullNameTest() in C:\src\VB.NET\Visual Studio 2008\UserDB_ORM\Model.Test\tbl_OETest.vb: line 69

-->
    <TestMethod()> _
    Public Sub FullNameTest()
        Dim pm As PersistenceManager = PersistenceManager.DefaultManager
Here it fails when I run the Test

-->
If I call the Test Method in the Form Load Method it works(!)
    Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
        Dim testobj As New Model.Test.tbl_OETest
        testobj.FullNameTest()
    End Sub

I can not understand what a Test Class has to do with Designtime, and even if it would, I fail to find a DesignMode Property there to work around this. And even IF it is a Designtime problem, then why does it work in my Form_Load Event? :-)