ftp_fget() errors.

[magus03]

I'm trying to write a function which will open a remote file on a server pointed to by $this->CP. This is some of the code that I have :

    function get( $filename, $option)
    {
            if( $option == "")
                    $option = $this->STRING;
            if ( !($this->_connect()))
                    return false;
           $this->filename = $filename;
            $this->FP = tmpfile();
            $result = ftp_fget( $this->CP, $this->FP, $this->filename, FTP_ASCII);
            rewind($this->FP);

    if ( !$result)
            {
                    $this->ftp_error = "Could not open $this->filename, on $this->lastHost.";
                    return false;
            }
            if( $option == $this->STRING)
            {
                   $string = "";
                    while ( !feof($this->FP))
                    {
                          $string .= fgets($this->FP, 4096);
                    }
                    return $string;

The problem is that for jpegs and etc. it opens them with no problem, but when it tries to open a text file this is the error returned ( After a 3 min wait)
Warning: ftp_get: in ./FtpClass.php on line 156 (The line of the ftp_fget() call)