hehheh, I got the notification of your reply just as I was doing the same thing. :-)
I found out about it on another thread here, which mentioned removing both KB2502786 and KB2541025.
KB2502786 wasn't on my system, and removing only KB2541025 didn't seem to totally clear things up. I was still getting a delay, and I also got a warning about one of the files being unsafe upon opening it, and I'm 100% positive about the file being just fine.
I noticed KB2509503 on the list of installed updates on the machines being dated a day after the missing KB2502786 was released (4/11/11), and looking it up showed that it was a very similar update, so I uninstalled it as well, and both machines are working just fine now. =)
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