80952 Download triggers save-as

I have a website where people can freely upload and download .lvl files. I am using the 'PHP Uploader Downloader'. The problem is, on the unix server, on the downloads page, when you click the link it views the file instead of trying to download it. The files are just ASCII text. I didnt have this problem on win2000 server? I dont know how to fix it.. so who ever can make something work.. .. to bad target="save-as" didnt work LOL... its prob a simple java line i can print from my PHPUpDown i think¿?