SVN Error when trying to checkout the code

Hello folks,

I’m using Mac OS X 10.4.8 OS, I installed Subversion using 4 different
methods with no success (Using Fink, OpenDarwin, directly compiled it,
and using Matthew E. Porter’s Package)

With all of them, when I try to checkout source code from anywhere
(RoR, TextMate, …) it give me an error like:

svn: REPORT request failed on ‘/rails/!svn/vcc/default’
svn: REPORT of ‘/rails/!svn/vcc/default’: 400 Bad Request

May someone please help me to find the problem?

Did I forgot anything? Or is there a bug with SVN?

Thanks in advance,