diff --git a/src/mame/drivers/model1.cpp b/src/mame/drivers/model1.cpp
index cbb319a98d4..a6959b7ba58 100644
--- a/src/mame/drivers/model1.cpp
+++ b/src/mame/drivers/model1.cpp
@@ -1750,6 +1750,7 @@ MACHINE_CONFIG_START(model1_state::vf)
 	model1_hle(config);
 
 	MCFG_DEVICE_MODIFY("ioboard")
+	MCFG_DEVICE_BIOS("epr14869b");
 	MCFG_MODEL1IO_IN2_CB(IOPORT("IN.2"))
 	MCFG_MODEL1IO_OUTPUT_CB(WRITE8(*this, model1_state, vf_outputs_w))
 MACHINE_CONFIG_END
diff --git a/src/mame/machine/model1io.cpp b/src/mame/machine/model1io.cpp
index 3510796e4b4..212b10009ea 100644
--- a/src/mame/machine/model1io.cpp
+++ b/src/mame/machine/model1io.cpp
@@ -112,7 +112,7 @@ ROM_START( model1io )
 
 	// Virtua Fighter (837-8936)
 	ROM_SYSTEM_BIOS(1, "epr14869b", "EPR-14869B")
-	ROMX_LOAD("epr-14869b.25", 0x0000, 0x10000, BAD_DUMP CRC(b410f22b) SHA1(75c5009ca4d21ebb53d54d4e3fb8aa55a4c74a07), ROM_BIOS(2)) // stray FFs at xx49, xx5F, xxC9, xxDF
+	ROMX_LOAD("epr-14869b.25", 0x0000, 0x10000, CRC(2d093304) SHA1(af0fe245eb9fa3c3c60e4b685f1e779f83d894f9), ROM_BIOS(2))
 
 	// Daytona USA (837-10539)
 	ROM_SYSTEM_BIOS(2, "epr14869c", "EPR-14869C")
diff --git a/src/mame/video/leland.cpp b/src/mame/video/leland.cpp
index 3b7e90d57cd..dd0bca45bc0 100644
--- a/src/mame/video/leland.cpp
+++ b/src/mame/video/leland.cpp
@@ -445,8 +445,9 @@ READ8_MEMBER(ataxx_state::ataxx_svram_port_r)
 
 uint32_t leland_state::screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect)
 {
-	bitmap_ind16 const &src = m_tilemap->pixmap();
-	int const height_mask = m_tilemap->height() - 1;
+	m_tilemap->set_scrollx(0, m_xscroll);
+	m_tilemap->set_scrolly(0, m_yscroll);
+	m_tilemap->draw(screen, bitmap, cliprect, 0);
 
 	/* for each scanline in the visible region */
 	for (int y = cliprect.min_y; y <= cliprect.max_y; y++)
@@ -457,12 +458,8 @@ uint32_t leland_state::screen_update(screen_device &screen, bitmap_ind16 &bitmap
 		/* for each pixel on the scanline */
 		for (int x = cliprect.min_x; x <= cliprect.max_x; x++)
 		{
-			/* compute the effective scrolled pixel coordinates */
-			uint16_t const sx = (x + m_xscroll) & 0x07ff;
-			uint16_t const sy = (y + m_yscroll) & height_mask;
-
 			/* build the pen, background is d0-d5 */
-			pen_t pen = src.pix16(sy, sx) & 0x3f;
+			pen_t pen = dst[x] & 0x3f;
 
 			/* foreground is d6-d9 */
 			if (x & 0x01)