Ftp Website Upload Problem

I am not sure if this problem has been answered before as I am new here.

I am and have been for some time using WS FTP PRO to upload files to my web site.

However just recently this has stopped working. I have not altered anything on my PC and the program is the same.

When I go to upload a file to my site it will load ONLY the 1st file and will hang at the end of the first file. I have to shut the program down and then re-start and the file will finish loading. I cannot upload multiple files at a time or even one single file without restarting the program.

I have also tried CUTE FTP and this will upload files but EVERY file that it uploads it misses the end part of the file. Even with pictures it misses the very last bit of the picture so the picture is incomplete.

ANY ideas how I can get my files uploading ?????

Thanks in advance.