diff -urN gbm-0.30/gbm.c gbm-0.30.aoe/gbm.c
--- gbm-0.30/gbm.c	Thu Apr 26 17:23:00 2001
+++ gbm-0.30.aoe/gbm.c	Mon May 28 00:52:39 2001
@@ -24,6 +24,10 @@
 // along with this program; if not, write to the Free Software
 // Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 
+// fbinv code pasted from Ross Vandegrifts code (ross@willow.seitz.cominserted)
+// found at http://poplar.seitz.com/~ross/agenda/ by Alexander Oelzant 
+// (aoe@mars.tuwien.ac.at)
+
 #include <unistd.h>
 #include <fcntl.h>
 #include <stdio.h>
@@ -40,16 +44,28 @@
 
 extern int detach(int nochdir, int noclose);
 
+void fbinv(int fd, unsigned char c);
+
 #define DEBUG_GBM
 #define ON_SYNC "/etc/gbm/on_sync"
 
 // should the vr3 go into hibernation?
 int turn_off;
+int pwr_pressed = 0;
+int invert_or_backlight=0;
 // how long to hold the power button before toggling the backlight?
 int time_to_backlight = 2;
 // should the unit go to sleep when the pen is inserted?
 int hibernate_on_pen = 1;
 
+void
+swap (short *foo, short *bar)
+{
+  short temp = *foo;
+  *foo = *bar;
+  *bar = temp;
+}
+
 int echo(const char* s, const char* filename)
 {
 	int fd;
@@ -87,6 +103,27 @@
 	ioctl(fd, FBIOPUT_BACKLIGHT, c);
 }
 
+void fbinv(int fd, unsigned char c)
+{
+  int invert;
+  int index;
+  unsigned short red [16], green [16], blue [16];
+  struct fb_cmap cmap = { 0, 16, red, green, blue, NULL };
+
+#ifdef DEBUG_GBM
+  printf("gbm: inverting: %.2x\n", c);
+#endif
+  ioctl (fd, FBIOGETCMAP, &cmap);
+
+  for (index = 0; index < 8; index ++)
+    {
+      swap (red + index, red + 15 - index);
+      swap (green + index, green + 15 - index);
+      swap (blue + index, blue + 15 - index);
+    }
+  ioctl (fd, FBIOPUTCMAP, &cmap);
+}
+
 int get_backlight(int fd)
 {
 	int num;
@@ -100,6 +137,7 @@
 void alarm_handler(int data)
 {
 	int fd;
+
 	switch (data) {
 		case SIGALRM:
 			fd = open("/dev/fb0", O_NONBLOCK);
@@ -108,8 +146,16 @@
 					strerror(errno));
 				return;
 			}
+			// invert first ...
+			if (!invert_or_backlight) {
+				fbinv(fd,'x');
+				alarm(time_to_backlight);
+				invert_or_backlight=1;
+			} else {
 			// toggle the backlight
-			set_backlight(fd, 1 - get_backlight(fd));
+				set_backlight(fd, 1 - get_backlight(fd));
+				invert_or_backlight=0;
+			}
 			close(fd);
 			// don't turn off, we handled the button press
 			turn_off = 0;
@@ -162,7 +208,9 @@
 				// If it turns out that we wanted to toggle the
 				// backlight, then the alarm handler will set
 				// this variable to 0
-				turn_off = 1;
+				turn_off = 1; 
+				pwr_pressed = 1; /* needed for stylus insert power off protection - aoe */
+				invert_or_backlight=0; /* always invert first */;
 				// Set an alarm to go off in the specified number
 				// of seconds.  If the button is still pressed
 				// at that time, the state
@@ -175,8 +223,9 @@
 				// If the alarm didn't happen, then this
 				// variable will still be 1, so we should
 				// go to sleep
-				if (turn_off == 1)
+				if (turn_off && pwr_pressed)
 					do_sleep();
+				pwr_pressed = 0;
 			}
 			break;
 
@@ -188,9 +237,13 @@
 
 		case BTN_PEN:
 			// This is the pen slot
-			if (hibernate_on_pen && (buff & BTN_PRESS))
+			if (hibernate_on_pen && (buff & BTN_PRESS) && !pwr_pressed)
 				// The pen has been inserted
 				do_sleep();
+			else { /* don't hibernate if power button is pressed */
+				alarm(0);
+				turn_off = 0;
+			}
 			break;
 
 		case BTN_SYNC: