diff --git a/configure.ac b/configure.ac
index cd72453..38ec94c 100644
--- a/configure.ac
+++ b/configure.ac
@@ -32,25 +32,25 @@ AC_CHECK_FUNCS(vsnprintf getenv putenv strcasecmp)
 CACA_DRIVERS="" 
 
 if test "${enable_conio}" != "no"; then
+  ac_cv_my_have_conio="no"
   AC_CHECK_HEADERS(conio.h,
-   [ac_cv_my_have_conio="yes"
-    AC_MSG_CHECKING(for ScreenUpdate in pc.h)
+   [AC_MSG_CHECKING(for ScreenUpdate in pc.h)
     AC_EGREP_HEADER(ScreenUpdate,pc.h,
-     [AC_MSG_RESULT(yes)
+     [ac_cv_my_have_conio="yes"
+      AC_MSG_RESULT(yes)
       AC_DEFINE(SCREENUPDATE_IN_PC_H, 1,
-                Define if <pc.h> defines ScreenUpdate.)],
-     [AC_MSG_RESULT(no)])
-    AC_DEFINE(USE_CONIO, 1, Define to activate the conio.h backend driver)
-    CACA_DRIVERS="${CACA_DRIVERS} conio"],
-   [ac_cv_my_have_conio="no"])
+                Define if <pc.h> defines ScreenUpdate.)
+      AC_DEFINE(USE_CONIO, 1, Define to activate the conio.h backend driver)
+      CACA_DRIVERS="${CACA_DRIVERS} conio"],
+     [AC_MSG_RESULT(no)])])
   if test "${ac_cv_my_have_conio}" = "no" -a "${enable_conio}" = "yes"; then
     AC_MSG_ERROR([cannot find conio.h])
   fi
 fi
 
 if test "${enable_slang}" != "no"; then
+  ac_cv_my_have_slang="no"
   AC_CHECK_HEADERS(slang.h slang/slang.h,
-   ac_cv_my_have_slang="no"
    [AC_CHECK_LIB(slang, SLkp_init,
      [ac_cv_my_have_slang="yes"
       AC_DEFINE(USE_SLANG, 1, Define to activate the slang backend driver)
@@ -81,14 +81,13 @@ if test "${enable_x11}" != "no"; then
 fi
 
 if test "${enable_ncurses}" != "no"; then
+  ac_cv_my_have_ncurses="no"
   AC_CHECK_HEADERS(ncurses.h,
    [AC_CHECK_LIB(ncurses, initscr,
      [ac_cv_my_have_ncurses="yes"
       AC_DEFINE(USE_NCURSES, 1, Define to activate the ncurses backend driver)
       CACA_LIBS="${CACA_LIBS} -lncurses"
-      CACA_DRIVERS="${CACA_DRIVERS} ncurses"],
-     [ac_cv_my_have_ncurses="no"])],
-   [ac_cv_my_have_ncurses="no"])
+      CACA_DRIVERS="${CACA_DRIVERS} ncurses"])])
   if test "${ac_cv_my_have_ncurses}" = "no" -a "${enable_ncurses}" = "yes"; then
     AC_MSG_ERROR([cannot find ncurses development files])
   fi
diff --git a/src/graphics.c b/src/graphics.c
index f3bed9b..17cdae8 100644
--- a/src/graphics.c
+++ b/src/graphics.c
@@ -324,8 +324,6 @@ void caca_putchar(int x, int y, char c)
         data = conio_screen + 2 * (x + y * _caca_width);
         data[0] = c;
         data[1] = (_caca_bgcolor << 4) | _caca_fgcolor;
-//        gotoxy(x + 1, y + 1);
-//        putch(c);
         break;
 #endif
 #if defined(USE_X11)
@@ -409,8 +407,6 @@ void caca_putstr(int x, int y, char const *s)
             *charbuf++ = *s++;
             *charbuf++ = (_caca_bgcolor << 4) | _caca_fgcolor;
         }
-//        gotoxy(x + 1, y + 1);
-//        cputs(s);
         break;
 #endif
 #if defined(USE_X11)
diff --git a/test/event.c b/test/event.c
index 1711cc8..cb781c8 100644
--- a/test/event.c
+++ b/test/event.c
@@ -91,11 +91,11 @@ static void print_event(int x, int y, unsigned int event)
         caca_printf(x, y, "CACA_EVENT_NONE");
         break;
     case CACA_EVENT_KEY_PRESS:
-        caca_printf(x, y, "CACA_EVENT_KEY_PRESS 0x%x",
+        caca_printf(x, y, "CACA_EVENT_KEY_PRESS 0x%02x",
                     event & 0x00ffffff);
         break;
     case CACA_EVENT_KEY_RELEASE:
-        caca_printf(x, y, "CACA_EVENT_KEY_RELEASE 0x%x",
+        caca_printf(x, y, "CACA_EVENT_KEY_RELEASE 0x2%x",
                     event & 0x00ffffff);
         break;
     case CACA_EVENT_MOUSE_MOTION: