install help

[Steve Neal]

Hi all, 
  
I'm new to Fedora and have downloaded the 3 installation files for Fedora Core to discover that the 2nd one doesn't match the MD5 check. I've tried downloading this a second time (from a different mirror site) and get exactly the same results. 
  
Can somone suggest where I might turn with this please. I've got a PC which is one third installed and waiting for disc 2 as I write this... 
  
Thanks in advance - Steve.