This seems to be a known issue that a few people are having (although not enough people for Microsoft to re-release the patch). Here's a link to a tech support forum:
oh! did you try the link posted by BobLoblaw? for me, if I get any problems with computer, I always call IT people.
They're really nice, they fix everything.
love satchi
ok this hasn't gone well. i tried the fix and then got overwhelmed by computer jargon so I thought, 'I'll just uninstall the whole SQL server thingy and then reinstall'. now I can't find the sql server to download - I don't even know what it is and if I even need it. Got a feeling I did something very bad!