Coldfusion accent file name or folder name

Hello,

I use coldfusion connector and when I upload or rename a file (or folder) with an accent, the file generated contains a "?" instead of the accent and after the file can't be deleted...

eg : "imageétoto.jpg" => "image?toto.jpg" on the server

My server is on linux and I use the lasted version of ckfinder (1.4.3)

Thanks for solution