The thread title relates to just one of the May updates (IE7), but the original post implies problems downloading the lot.
Likewise here, re. the latter. The whole download process seems to affect IE even before one gets anywhere near an update, KB931768 included. The Update web page just runs and runs to no avail, but then takes some drastic action just to shut down IE afterwards (as I say, even before KB931768 has had a chance to make an appearance). No success as yet over the last two days.