Is there a limit to mget command?

Hi All,

I am using a csh ftp to get all the relevant files i need.
When i reduce the number of file to 4 (which is aaa,bbb,ccc,ddd), the script manage to get all the files i need. But when i add "eee" to the mget command, it doesn;t seem to get any files at all.
Is there a limit to how many files the mget command can take ?
By the way, each file size is quite big about 5Mb

set aaa = `echo "file1"`
set bbb = `echo "file2"`
set ccc = `echo "file3"`
set ddd = `echo "file4"`
set eee = `echo "file5"`

set USER = "xxx"
set PASS = "yyy"
ftp -n 10.10.10.10 << XX > /dev/null
user $USER $PASS
cd /myfolder/myfiles
lcd /mydir
prompt
ascii
mget $aaa $bbb $ccc $ddd $eee
XX