I have a situation - Fck editor 2.5.1

I had release 2.2 and that's ok. Today i put new release 2.51 but i have a serious problem.

I see the text in this way

 New Features and Improvements:

    * FCKeditor.Net 2.5 compatibility.


    * JavaScript integration file:


          o The new "FCKeditor.ReplaceAllTextareas" function is being introduced, making it possible to replace many (or unknown) <textarea> elements in a single call. The replacement can be also filtered by CSS class name, or by a custom function evaluator.


          o It is now possible to set the default BasePath for all editor instances by setting FCKeditor.BasePath. This is extremely useful when working with the ReplaceAllTextareas function.

and when i enter for edit, i see 3 <br>

How can i do? Previous release works great.

Please, ty