I finally got around to installing SP3 and installation went through seemlessly, but it did somehow reinstall my wireless adapter, Messenger services, and knocked out drivers for my TV Tuner remote control software

. Other than that, I have no strange effects.
Upon initial boot up, the Windows Auto Update window came up before booting to the desktop. I disabled the update feature because I usually do the Windows Update manually. Other than that, I don't see anything new.