.SH NAME
xtrlock \- Lock X display until password supplied, leaving windows visible
.SH SYNOPSIS
-.B xtrlock
+.B xtrlock [-b]
.SH DESCRIPTION
.B xtrlock
locks the X server till the user enters their password at the keyboard.
The X server screen saver continues to operate normally; if it comes
into operation the display may be restored by the usual means of
touching a key (Shift, for example) or the mouse.
-.SH OPTIONS, X RESOURCES, CONFIGURATION
+.SH OPTIONS
+.TP
+\fB\-b\fR
+blank the screen as well as displaying the padlock
+.SH X RESOURCES, CONFIGURATION
None.
.SH BUGS
Additional input devices other than the keyboard and mouse are not