diff --git a/CORE/PET2001_MiSTer b/CORE/PET2001_MiSTer
index 6da160e..233f5f1 160000
--- a/CORE/PET2001_MiSTer
+++ b/CORE/PET2001_MiSTer
@@ -1 +1 @@
-Subproject commit 6da160eb00874565281ae1f1a7a9f17421885315
+Subproject commit 233f5f174c445d40321f60a800835c1f9392ac48
diff --git a/CORE/vhdl/config.vhd b/CORE/vhdl/config.vhd
index 6b7ea82..299750f 100644
--- a/CORE/vhdl/config.vhd
+++ b/CORE/vhdl/config.vhd
@@ -427,8 +427,8 @@ constant OPTM_GROUPS       : OPTM_GTYPE := ( OPTM_G_TEXT + OPTM_G_HEADLINE,
                                              OPTM_G_LINE,                              -- Line
                                              OPTM_G_TEXT + OPTM_G_HEADLINE,            -- Headline "Drives"
                                              OPTM_G_LINE,                              -- Line
-                                             OPTM_G_Drive_8 + OPTM_G_MOUNT_DRV,        -- Drive X
-                                             OPTM_G_Drive_9 + OPTM_G_MOUNT_DRV,        -- Drive Y
+                                             OPTM_G_Drive_8 + OPTM_G_MOUNT_DRV,        -- Drive 8
+                                             OPTM_G_Drive_9                   ,        -- Drive 9
                                              OPTM_G_Drive_Z                   ,        -- Drive Z, not used
                                              OPTM_G_LINE,                              -- Line
                                              OPTM_G_TEXT + OPTM_G_HEADLINE,            -- Headline "Another Headline"
diff --git a/CORE/vhdl/globals.vhd b/CORE/vhdl/globals.vhd
index 907a90c..2247b60 100644
--- a/CORE/vhdl/globals.vhd
+++ b/CORE/vhdl/globals.vhd
@@ -107,7 +107,7 @@ constant C_DEV_DEMO_NOBUFFER  : std_logic_vector(15 downto 0) := x"AAAA";
 -- Otherwise make sure that you wire C_VD_DEVICE in the qnice_ramrom_devices process and that you
 -- have as many appropriately sized RAM buffers for disk images as you have drives
 type vd_buf_array is array(natural range <>) of std_logic_vector;
-constant C_VDNUM              : natural := 2;                                          -- amount of virtual drives; maximum is 15
+constant C_VDNUM              : natural := 1;                                          -- amount of virtual drives; maximum is 15
 constant C_VD_DEVICE          : std_logic_vector(15 downto 0) := C_DEV_PET_VDRIVES;    -- device number of vdrives.vhd device
 constant C_VD_BUFFER          : vd_buf_array := (  C_DEV_PET_MOUNT,
                                                    C_DEV_PET_MOUNT2,