# Command-line parameters

To display a list of command-line parameters type: `A:DIAG ?` [Enter]

Select Diagnostic program command-line parameters from the help index. Press [Enter]

Some commonly used parameters are for:

- Setting the display to Monochrome mode. Certain monochrome monitors, particularly CGA-, EGA- and VGA-compatible gas-plasma displays, need this parameter to display highlighted text properly. Type: A:DIAG /M [Enter]

- Setting the display to Text mode. If you are using a mouse in conjunction with an EGA or VGA display, this may speed up the operation of the Diagnostics screens. Type: A:DIAG /T [Enter]