Problem When you attempt to connect to a wireless network on your Mac, you see the error “Wi-Fi: No hardware installed” or “No AirPort card installed” instead of any options. Solution Reset PRAM.
Month: January 2012
Find out what Processes are using a Port Number
To find out what processes are using a particular port number, you can use the following example which looks at Port 80. You can change the port number by replacing any instances of 80 with your preferred number. Press the Windows Key + R to bring up the Run dialog. Type cmd and press Enter to open… Continue reading Find out what Processes are using a Port Number
Unable to Change Background on Mac
Problem On your Mac, nothing happens when you change your Desktop wallpaper. Cause The preference that manages this setting has become corrupt. Solution Go to your User Library folder. Open the Preferences folder. Delete the file “com.apple.desktop.plist”. Logout and log back in. You should now be able to change your background again.
Black screen with bar graphs appears on Mac
Problem On your Mac, a black screen appears with several bar graphs and statistics shown (see image below). When this happens, you are unable to use the computer or come out of it. Cause This is actually the Intego VirusBarrier screen saver although it is currently unknown as to why you are unable to get out of… Continue reading Black screen with bar graphs appears on Mac
How to take a Screenshot of your Mac Screen Saver
Click the Apple icon in the top left of the screen. Click System Preferences. Click “Desktop & Screen Saver” on the first row. Make sure you have the correct screen saver selected. Hold down the cmd + Shift keys. Don’t let go until step 8. Click the Test button. The screen saver will appear. When… Continue reading How to take a Screenshot of your Mac Screen Saver