Enhanced the text for device size for SIZE.

gbootroot

@@ -481,7 +481,8 @@ button("Device Selection",$entry4,"Device Selection",3,"/dev/fd0");
 hbox("what");
 my $adj = Gtk::Adjustment->new( 1440.0, 0.0, 360000000.0, 282.0, 360.0, 0.0 );
 my $spinner = Gtk::SpinButton->new( $adj, 0, 0 );
-$tooltips->set_tip( $spinner, "Choose the Device Size.", "" );
+$tooltips->set_tip( $spinner, "Choose the Device Size.\n" .
+"Hint:  Many 1440 floppy drives support 1722.\n", "" );
 $spinner->set_wrap( $true );
 $spinner->set_numeric( $true );
 $spinner->set_shadow_type( 'in' );