package checksum fail (for several days now)

[Jim Carroll]

Hi, when I try to use Synaptic to do a smart upgrade, I 
get the following error:

W: Failed to fetch
http://us.archive.ubuntu.com/ubuntu/pool/main/libc/
libcairo/libcairo1_0.3.0-1_i386.deb
  MD5Sum mismatch

Could I be doing something wrong? could someone please 
update the package and
its checksum?

Thanks,
-Jim