Yesterday I updated my iMac OSX version 10.5.8 software through apple software update, and i noticed that the air port software had an update as well. After installation and reboot, I noticed my internet was dropping often. My surfing is slow, email takes long to load, and buffering a video is next to impossible now. My internet was perfect before, and now i dont know what to do. does anyone have a solution before I call apple and play ring around the rosie with them on the phone? Any help is appreciated.