Anaconda Exception during install

[MDS]

hi again,


   During the install of FC1, everything goes fine until I hit next
after setting the root password. An "exception occured" window pops up
and complains

File "/usr/lib/anaconda/urlinstall.py", line204, in readHeaders raise
TypeError, "bad magic in header"

I'm doing an HTTP install. 

Any clues?

thanx