Hi Chunhao, Please do not send RAR files to us. They aren't exactly easy for us to read. Most Linux people will ignore any RAR file you send to them (I do) for this reason. Just attach the files directly to your mail, it is so easier for us to deal with. If this means more than one attached file, it's alright. And size isn't an issue either, since the files you attach aren't that large in the first place. Thanks, -- Jean Delvare