Immunization update hangs on Global (Hosts)

[glnz2]

Just downloaded the most recent update for Spybot S&D and the Immunization hangs on the last item, Global (Hosts). My Global (Hosts) is stuck showing 38 Unprotected items, out of a total of 7893. Have run it a few times and even rebooted, but still stuck. What to do?

Have version 1.5.16, latest update 1/23/2008. This is on my office desktop running Win2000Pro with plenty of RAM and hard disk space.
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UPDATE: After re-running it 10 times, it finally updated all the Global (Hosts). Why the slowdown??

Thanks.