[Plugin: CKEditor for WordPress] Transform BR to P after saving

I’m using CKEditor v1.0.9 and WordPress v3.2.1. Also note that I am using qTranslate v2.5.24.

The problem appears after I first Publish my page. I insert my text like this:
Text inserted in CKEditor

It is saved like that but when the page refresh, I see it like this (with line breaks):
Text appears like this after save

And if I republish what appears, the text will change the double BR tags (which are supposed to be single BR) into P tags like this:
Now the text has paragraphs instead of line breaks!

Any idea what could cause this? I’m looking desesperately for a fix! Thanks!