The same thing happened to me when doing the checkout from my home dial-up connection.
So I went down to my local internet-cafe and used their high-speed connection. That worked smoothly, and now I have a good copy of Nukes.
I will ask to have a dayly snapshot of the cvs, stay tuned.
For info - i tried on multiple computers - all with
differing ADSL -> 2Mbps connections.
You're not alone. I too have the same problem using SDSL. There is a real problem here. I've tried numerous times.