just a warning?

[Me - Atlantic]

> Hm, usually a 'sudo apt-get update' fixes that.  Try hitting the
> 'Reload' button in Synaptic. 
Dave~
I'm curious about this as well.  It happens to me very often in both
synaptic and [sudo] apt-get...

I've heard that it was due to traffic on the servers/mirrors.  But,
after all of the warnings, it still runs the appropriate updates.

Running Ubuntu 5.10 / 2.6.12-10-386