I was wondering why Vista SP1 hadn't shown up yet in the Windows Update service, for our laptop. We have a Dell Inspiron 1521, and I had been expecting SP1 to be there by now. So I headed off to The Google last night to figure it out. Turns out our audio driver wasn't supported on SP1.
I found an updated driver on Dell's site, removed the old one, and rebooted. When it came back up, Vista installed a generic Microsoft audio driver. I installed the Dell (Sigmatel) driver, and rebooted. Then I went back to Windows Update. Tada! SP1 showed up.
Downloaded, installed, rebooted a few times. Everything worked great. Took about an hour total. No problems yet, although I haven't noticed anything different.
