Apple MacBook Wifi Issues

Apple Macbook users are urged to update to the latest Mavericks v10.9.4 update which addresses issues connecting to known WIFI networks.  Apple released an update in late June that fixed a number of issues with their 10.9 Mavericks operating system as follows:  (from http://support.apple.com/kb/HT6281)

• Fixes an issue that prevented some Macs from automatically connecting to known Wi-Fi networks
• Fixes issue causing the background or Apple logo to appear incorrectly on startup
• Improves the reliability of waking from sleep
• Includes Safari 7.0.5

For detailed information about the security content of this update, see Apple security updates.