I have a macbook pro unibody [LATE OCT. 2008] EDITION. i recently updated my OSX to 10.5.8 from the software update and have lost connection to my wireless router. I thought it was my router that was at fault but my Vaio connects to the router fine wirelessly. I can however connect with ethernet cable but airport doesn;t connect to my router wirelessly. Is this an update issue? any solutions??