Import and checkout problem

Hi,
 
I'm new to subversion and started with the quick start manual.
I'm using subversion 1.1 an WindowsXP.
My problem is:
I tried to checkout into the folder after an initial import which still contains the files that were imported.
 
How can I accomplish that task?
 
When deleting all file in my working dir, svn co is able to checkout all files, but that is kind of annoying.
 
This is what I have done:
-------------------------------------
D:\Projekte>svn ls file:///D:/svnroot
projects/
 
D:\Projekte>svn import -m "test import" TestSVN file:///D:/svnroot/projects/TestSVN
Hinzufügen TestSVN\JustAfolder
Hinzufügen TestSVN\JustAfolder\bDoc.pdf
Hinzufügen TestSVN\aDoc.pdf
 
Revision 7 übertragen.
 
D:\Projekte>svn ls file:///D:/svnroot/projects/TestSVN -R
JustAfolder/
JustAfolder/bDoc.pdf
aDoc.pdf
 
D:\Projekte>svn co file:///D:/svnroot/projects/TestSVN
svn: Konnte Verzeichnis 'TestSVN/JustAfolder' nicht hinzufügen: ein Objekt mit demselben Namen
existiert bereits
-----------------------------------------------------
 
Last command says that an object with the given name exists!
 
Any hints or comments?
 
Thanks,
 
Markus