need one more help

[sundarmobiles]

if tried to move attachments from database to filesystem am always getting this msg but i changed chmod value to 777 for backiup folder and also safemode is also disables still am getting the same msg any one help me to solve this.........

We attempted to write a test file to /path/to/your/attachment/directory, but we were unsuccessful. Please verify that the web server has write/delete permissions for this path.