When launching powershell.exe directly, you get a console with black background and only 300 lines of buffer text. When you launch PowerShell from your start menu, you really launch a link, and links can store console custom settings. So this time, your console has a nice bluish background, and the console buffer is expanded to hold 3,000 lines. You can change these settings by clicking the icon in the left upper corner of your console title bar and choose "Properties."
