This has happened to me a couple of times, when it got to loading the Wireless driver booting from live CD. I have a G-202 dongle, and the solution was simply to unplug the dongle at which point it continued to the desktop. Plugging the dongle back in, I was able to set up the wireless connection, and once installed there was no problem. I have reported this to Texstar but I've put this here in case anyone else has the same problem.
If you have a laptop/netbook, obviously you cannot unplug a dongle, the solution might be to use whatever keys disable the wireless, then re-enable once at the desktop.
I suspect this only happens with a small number of hardware configurations.