Array 6 fails on laptop

[John Levin]

Hi,

I'm having trouble installing Hoary array 6 on an old 233mhz laptop. 
Both the live cd and install cd - and the Kubuntu preview - fail with 
the message:
"The failing step is: Load installer components from cd"

The cd integrity test fails, with:
"./dists/hoary/main/binary-i386/packages failed md5 checksum 
verification

However, I have tried the cds on another (desktop) machine, and they 
work perfectly.

What now?

John