My software update showed iTunes 10.5.3 and AirPort version 6.0.0 ready to be downloaded. So I clicked update and sat back to watch the evening news. Seemed like a routine process, and iTunes updated just fine. But when I launched AirPort I got a drop-down stating that a newer version (6.0.0) is available, click to update. Huh??? When I checked the version installed it came back as 5.3.3. So I went back out to software update and it said my software was "up to date." SO, what happened to the downloaded version 6.0.0? Why didn't it overwrite 5.5.3? It's got to be somewhere on the hard drive because my software is "up to date!" So what happened? And more important, how can I fix it? This is a first for me. Over to y'all.