diff --git a/src/mess/includes/apple3.h b/src/mess/includes/apple3.h
index d0872412d05..53c1e35c745 100644
--- a/src/mess/includes/apple3.h
+++ b/src/mess/includes/apple3.h
@@ -115,7 +115,7 @@ private:
 	int m_via_1_irq;
 	offs_t m_zpa;
 	UINT8 m_last_n;
-	UINT8 *m_char_mem;
+	UINT8 m_char_mem[0x800];
 	UINT32 *m_hgr_map;
 
 	bool m_sync;
diff --git a/src/mess/machine/apple3.c b/src/mess/machine/apple3.c
index 76b5d0719c1..b161c18b31b 100644
--- a/src/mess/machine/apple3.c
+++ b/src/mess/machine/apple3.c
@@ -110,13 +110,19 @@ READ8_MEMBER(apple3_state::apple3_c0xx_r)
 			m_strobe = 0;
 			break;
 
+		case 0x20: case 0x21: case 0x22: case 0x23:
+		case 0x24: case 0x25: case 0x26: case 0x27:
+		case 0x28: case 0x29: case 0x2A: case 0x2B:
+		case 0x2C: case 0x2D: case 0x2E: case 0x2F:
+			m_cnxx_slot = -1;
+			break;
+
 		case 0x30: case 0x31: case 0x32: case 0x33:
 		case 0x34: case 0x35: case 0x36: case 0x37:
 		case 0x38: case 0x39: case 0x3A: case 0x3B:
 		case 0x3C: case 0x3D: case 0x3E: case 0x3F:
 			m_speaker_state ^= 1;
 			m_speaker->level_w(m_speaker_state);
-			result = 0xff;
 			break;
 
 		case 0x40: case 0x41: case 0x42: case 0x43:
@@ -124,7 +130,6 @@ READ8_MEMBER(apple3_state::apple3_c0xx_r)
 		case 0x48: case 0x49: case 0x4A: case 0x4B:
 		case 0x4C: case 0x4D: case 0x4E: case 0x4F:
 			m_c040_time = 200;
-			result = 0xff;
 			break;
 
 		case 0x50: case 0x51: case 0x52: case 0x53:
@@ -235,6 +240,13 @@ WRITE8_MEMBER(apple3_state::apple3_c0xx_w)
 			m_strobe = 0;
 			break;
 
+		case 0x20: case 0x21: case 0x22: case 0x23:
+		case 0x24: case 0x25: case 0x26: case 0x27:
+		case 0x28: case 0x29: case 0x2A: case 0x2B:
+		case 0x2C: case 0x2D: case 0x2E: case 0x2F:
+			m_cnxx_slot = -1;
+			break;
+
 		case 0x30: case 0x31: case 0x32: case 0x33:
 		case 0x34: case 0x35: case 0x36: case 0x37:
 		case 0x38: case 0x39: case 0x3A: case 0x3B:
@@ -717,6 +729,8 @@ DRIVER_INIT_MEMBER(apple3_state,apple3)
 	save_item(NAME(m_lastchar));
 	save_item(NAME(m_strobe));
 	save_item(NAME(m_transchar));
+	save_item(NAME(m_flags));
+	save_item(NAME(m_char_mem));
 
 	machine().save().register_postload(save_prepost_delegate(FUNC(apple3_state::apple3_postload), this));
 }
diff --git a/src/mess/video/apple3.c b/src/mess/video/apple3.c
index c406fec69a3..15ac8707d57 100644
--- a/src/mess/video/apple3.c
+++ b/src/mess/video/apple3.c
@@ -102,7 +102,6 @@ VIDEO_START_MEMBER(apple3_state,apple3)
 	int i, j;
 	UINT32 v;
 
-	m_char_mem = auto_alloc_array(machine(), UINT8, 0x800);
 	memset(m_char_mem, 0, 0x800);
 
 	m_hgr_map = auto_alloc_array(machine(), UINT32, 192);
@@ -348,8 +347,12 @@ void apple3_state::apple3_video_graphics_shgr(bitmap_ind16 &bitmap)
 			for (x = 0; x < 7; x++)
 			{
 				*(ptr++) = (b1 & 0x01) ? WHITE : BLACK;
-				*(ptr++) = (b2 & 0x01) ? WHITE : BLACK;
 				b1 >>= 1;
+			}
+
+			for (x = 0; x < 7; x++)
+			{
+				*(ptr++) = (b2 & 0x01) ? WHITE : BLACK;
 				b2 >>= 1;
 			}
 		}
@@ -391,6 +394,8 @@ void apple3_state::apple3_video_graphics_chires(bitmap_ind16 &bitmap)
 
 UINT32 apple3_state::screen_update_apple3(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect)
 {
+//	printf("gfx mode %x\n", m_flags & (VAR_VM3|VAR_VM1|VAR_VM0));
+
 	switch(m_flags & (VAR_VM3|VAR_VM1|VAR_VM0))
 	{
 		case 0: