R help - Feb 2005 - how to make an empty screen

Hi

I want to plot control charts for several events grouped by employees.
As every employees doesn't encounter every event, a variable number of
control charts is produced in turn.
Now what I need is a way to get a new empty screen when the printout for one
employee has finished as the title lines is somhow mixed between the
changing of employees

The screen setup: 
	par(mfrow=c(4,4))
And I make the title like this:
	title(main=event, outer=T)

Regards soren