diff --git a/Simulator/Main/3dfx.sh b/Simulator/Main/3dfx.sh
index cb766b743..2a310ebf7 100755
--- a/Simulator/Main/3dfx.sh
+++ b/Simulator/Main/3dfx.sh
@@ -1,6 +1,14 @@
 #!/bin/sh
 
-WINDOW=YES
+if [ $1 = "--full" ]; then
+    echo "Running full screen ..."
+    shift
+    WINDOW=NO
+else
+    echo "Running in a window, use --full to run full screen."
+    WINDOW=YES
+fi
+echo
 
 if [ $WINDOW = "YES" ]; then
     # in a window (slow hack)
diff --git a/Simulator/Main/Makefile.am b/Simulator/Main/Makefile.am
index ca71378e2..3d5a51361 100644
--- a/Simulator/Main/Makefile.am
+++ b/Simulator/Main/Makefile.am
@@ -27,7 +27,7 @@ else
 SERIAL_LIBS =
 endif
 
-EXTRA_DIST = runfgfs.in runfgfs.bat.in
+EXTRA_DIST = 3dfx.sh runfgfs.in runfgfs.bat.in
 
 bin_PROGRAMS = fgfs
 
diff --git a/Simulator/Main/fg_serial.cxx b/Simulator/Main/fg_serial.cxx
index 0c14b78db..fef2c32d5 100644
--- a/Simulator/Main/fg_serial.cxx
+++ b/Simulator/Main/fg_serial.cxx
@@ -478,28 +478,30 @@ static void send_rul_out( fgIOCHANNEL *p ) {
     
     // get roll and pitch, convert to degrees
     double roll_deg = f->get_Phi() * RAD_TO_DEG;
-    while ( roll_deg < 0.0 ) {
+    while ( roll_deg < -180.0 ) {
 	roll_deg += 360.0;
     }
-    while ( roll_deg > 360.0 ) {
+    while ( roll_deg > 180.0 ) {
 	roll_deg -= 360.0;
     }
 
     double pitch_deg = f->get_Theta() * RAD_TO_DEG;
-    while ( pitch_deg < 0.0 ) {
+    while ( pitch_deg < -180.0 ) {
 	pitch_deg += 360.0;
     }
-    while ( pitch_deg > 360.0 ) {
+    while ( pitch_deg > 180.0 ) {
 	pitch_deg -= 360.0;
     }
 
     // scale roll and pitch to output format (1 - 255)
-    int roll = (int)(roll_deg * 254.0 / 359.0) + 1;
-    int pitch = (int)(pitch_deg * 254.0 / 359.0) + 1;
+    // straight && level == (128, 128)
+
+    int roll = (int)( (roll_deg+180.0) * 255.0 / 360.0) + 1;
+    int pitch = (int)( (pitch_deg+180.0) * 255.0 / 360.0) + 1;
 
     sprintf( rul, "p%c%c\n", roll, pitch);
 
-    FG_LOG( FG_SERIAL, FG_DEBUG, "p " << roll << " " << pitch );
+    FG_LOG( FG_SERIAL, FG_INFO, "p " << roll << " " << pitch );
 
     string rul_sentence = rul;
     p->port.write_port(rul_sentence);
diff --git a/Simulator/Main/runfgfs.bat.in b/Simulator/Main/runfgfs.bat.in
index e64c4b637..ebcc4988f 100755
--- a/Simulator/Main/runfgfs.bat.in
+++ b/Simulator/Main/runfgfs.bat.in
@@ -1,28 +1,23 @@
 REM @ECHO OFF
 
-REM Skip ahead to RUN1 if %FG_ROOT%\BIN\FGFS.EXE exists
-IF EXIST %FG_ROOT%\BIN\FGFS.EXE GOTO RUN1
+REM Skip ahead to CONT1 if FG_ROOT has a value
+IF NOT %FG_ROOT%.==. GOTO CONT1
 
-REM %FG_ROOT% wasn't set right so let's try "."
 SET FG_ROOT=.
-IF EXIST %FG_ROOT%\BIN\FGFS.EXE GOTO RUN1
 
-REM %FG_ROOT% wasn't set right so let's try ".."
-SET FG_ROOT=..
-IF EXIST %FG_ROOT%\BIN\FGFS.EXE GOTO RUN1
+:CONT1
 
-REM %FG_ROOT% wasn't set right so let's try "@prefix@"
-SET FG_ROOT=@prefix@
-IF EXIST %FG_ROOT%\BIN\FGFS.EXE GOTO RUN1
+REM Check for the existance of the executable
+IF NOT EXIST %FG_ROOT%\BIN\FGFS.EXE GOTO ERROR1
 
-ECHO Cannot find %FG_ROOT%\BIN\FGFS.EXE
-GOTO END
-
-:RUN1
 REM Now that FG_ROOT has been set, run the program
 ECHO FG_ROOT = %FG_ROOT%
 %FG_ROOT%\BIN\FGFS.EXE %1 %2 %3 %4 %5 %6 %7 %8 %9
 
 GOTO END
 
+:ERROR1
+ECHO Cannot find %FG_ROOT%\BIN\FGFS.EXE
+GOTO END
+
 :END