diff --git a/src/mame/drivers/mephisto_berlin.cpp b/src/mame/drivers/mephisto_berlin.cpp
index 622d932dbc5..09ec03c7818 100644
--- a/src/mame/drivers/mephisto_berlin.cpp
+++ b/src/mame/drivers/mephisto_berlin.cpp
@@ -21,9 +21,6 @@ Undocumented buttons:
 #include "machine/nvram.h"
 #include "machine/mmboard.h"
 
-#include "screen.h"
-#include "speaker.h"
-
 // internal artwork
 #include "mephisto_berlin.lh"
 
diff --git a/src/mame/drivers/mephisto_modular.cpp b/src/mame/drivers/mephisto_modular.cpp
index e749278f42f..978302beb04 100644
--- a/src/mame/drivers/mephisto_modular.cpp
+++ b/src/mame/drivers/mephisto_modular.cpp
@@ -32,7 +32,7 @@ TODO:
 
 Undocumented buttons:
 - holding ENTER and LEFT cursor on boot runs diagnostics
-- holding UP and RIGHT cursor on boot will clear the battery backed RAM
+- holding CLEAR on boot will clear the battery backed RAM
 
 ===============================================================================
 
@@ -454,7 +454,7 @@ void mmodular_state::gen32(machine_config &config)
 	const attotime irq_period = attotime::from_hz(6.144_MHz_XTAL / 0x4000); // through 4060, 375Hz
 	m_maincpu->set_periodic_int(FUNC(mmodular_state::irq2_line_hold), irq_period);
 
-	subdevice<hd44780_device>("display:hd44780")->set_busy_factor(0.25);
+	subdevice<hd44780_device>("display:hd44780")->set_busy_factor(0.25); // problem with waitstates
 	config.set_default_layout(layout_mephisto_gen32);
 }
 
diff --git a/src/mame/drivers/mephisto_modular_tm.cpp b/src/mame/drivers/mephisto_modular_tm.cpp
index 473bff3e715..52b203bc64a 100644
--- a/src/mame/drivers/mephisto_modular_tm.cpp
+++ b/src/mame/drivers/mephisto_modular_tm.cpp
@@ -11,8 +11,8 @@ for it, but no software 'driver' either.
 
 Mephisto TM Almeria is not on this hardware.
 
-Mephisto Berlin 68030 is an unreleased dev version, an update to Vancouver,
-not used in any tournament. Internal string and version matches Vancouver 68030,
+Mephisto TM Berlin is an unreleased dev version, an update to TM Vancouver, but
+not used in any tournament. Internal string and version matches TM Vancouver,
 but ROM has many differences.
 
 Hardware notes: