[CentOS] yum issues

I hve two different boxes.
One runs the updates to vim jsut fine.
the other throws --> Populating transaction set with selected packages. 
Please wait.
---> Downloading header for sudo to pack into transaction set.
sudo-1.6.7p5-30.1.1.i386. 100% |=========================| 161 kB    00:00
http://mirror.centos.org/centos/4/updates/i386/RPMS/sudo-1.6.7p5-30.1.1.i386.rpm: 
[Errno -1] Header is not complete.
Trying other mirror.
Error: failure: RPMS/sudo-1.6.7p5-30.1.1.i386.rpm from update: [Errno 
256] No more mirrors to try.
  They bypass my local http prxy.  Any ideas?

-- 
My "Foundation" verse:
Isa 54:17  No weapon that is formed against thee shall prosper; and 
every tongue that shall rise against thee in judgment thou shalt 
condemn. This is the heritage of the servants of the LORD, and their 
righteousness is of me, saith the LORD.

-- carpe ductum -- "Grab the tape"
CDTT (Certified Duct Tape Technician)

Linux user #322099
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