can't install 5.3-BETA5

I decided to do a clean install of 5.3-BETA5 on my desktop. However, it 
doesn't install. When I boot from CD, I get this message:

md0: Preloaded image </boot/mfsroot> 4423680 bytes at 0xc09668a4
GEOM: Configure md0a, start 0 length 4423680 end 4423679
GEOM: Configure md0c, start 0 length 4423680 end 4423679
[0] f:00 typ:0 s(CHS):0/0/0 e(CHS):0/0/0 s:0 l:0
[1] f:00 typ:0 s(CHS):0/0/0 e(CHS):0/0/0 s:0 l:0
[2] f:00 typ:0 s(CHS):0/0/0 e(CHS):0/0/0 s:0 l:0
[3] f:80 typ:165 s(CHS):0/0/1 e(CHS):1023/254/63 s:0 l:50000

This is on a verbose boot. It just hangs after printing this. I've ruled out a 
problem with the media, because I've tried using floppies as well and it 
hangs in exactly the same place.

Any ideas what the problem might be?

-David

-- 
+++ Divide By Cucumber Error. Please
Reinstall Universe And Reboot. +++