diff --git a/lib/gdt.c b/lib/gdt.c
index 2b35d2d..3397da2 100755
--- a/lib/gdt.c
+++ b/lib/gdt.c
@@ -35,13 +35,13 @@ void initgdt()
             movw %ax, %es	\n \
             movw %ax, %fs	\n \
             movw %ax, %gs   \n \
-            movl 0x0C(%esp), %eax \n \
+            movl 0x0C(%esp), %ebx \n \
             movw $0x18, %ax \n \
             movw %ax, %ss \n \
             movl $0x20000, %esp \n \
-            pushl %eax \n \
             ljmp $0x08, $raz	\n \
             raz:		\n \
+            pushl %ebx \n \
             ret\n");
 }
 
diff --git a/lib/keyboard.c b/lib/keyboard.c
index b5127f0..e7ed557 100755
--- a/lib/keyboard.c
+++ b/lib/keyboard.c
@@ -106,7 +106,7 @@ u8* getstring(u8* temp) {
             pointer--;
             putchar(ascii);
         }
-        else if (ascii>31 && pointer<=&temp+80) {
+        else if (ascii>31 && pointer<=temp+80) {
             *pointer++=ascii;
             putchar(ascii);
         }
@@ -252,6 +252,12 @@ unsigned convert(u32 keypressed)
 		outkbd(0x60, temp);	/* 3 bits de poids faible pour les LEDs */
 		return 0;
 	}
+/* Appuie de CRTL + ALT + SUPR ? */
+	if ((kbdstatus & STATUS_CTRL) && (kbdstatus & STATUS_ALT)
+	    (key == 73)) {
+		print("redemarrage du systeme");
+		reboot();
+	}
 /* est ce un code etendu */
 	if ((bufferscan[lastscan] == 0xE0)
 	    || ((kbdstatus & STATUS_NUM) && (key >= 0x47) && (key <= 0x53)
@@ -311,16 +317,9 @@ unsigned convert(u32 keypressed)
 		else
 			temp = set1_normal[key];
 	}
-
 /* si scancode non reconnu fin de fonction */
 	if (temp == 0)
 		return temp;
-/* Appuie de CRTL + ALT + SUPR ? */
-	if ((kbdstatus & STATUS_CTRL) && (kbdstatus & STATUS_ALT) &&
-	    (key == 76)) {
-		print("redemarrage du systeme");
-		reboot();
-	}
 /* Renvoie le Code ascii */
 	return temp;
 }
diff --git a/system/system.c b/system/system.c
index b7eb961..79ae892 100755
--- a/system/system.c
+++ b/system/system.c
@@ -60,17 +60,17 @@ int main(void)
 	ok();
 
 	print(" -Installation du handler timer (IRQ 0)\000");
-	setidt((u32) timer, 0x20, INTGATE, 32);
+	setidt((u32) timer, 0x8, INTGATE, 32);
 	enableirq(0);
 	ok();
 
 	print(" -Installation du handler clavier (IRQ 1)\000");
-	setidt((u32) keyboard, 0x20, INTGATE, 33);
+	setidt((u32) keyboard, 0x8, INTGATE, 33);
 	enableirq(1);
 	ok();
 
 	print(" -Installation du handler souris (IRQ12+Cascade IRQ2)\000");
-	setidt((u32) mouse, 0x20, INTGATE, 100);
+	setidt((u32) mouse, 0x8, INTGATE, 100);
 	enableirq(2);
 	enableirq(12);
 	if (initmouse() != 1)