diff --git a/dsp/cmDspBuiltIn.c b/dsp/cmDspBuiltIn.c
index 065fc1e..c57b0a9 100644
--- a/dsp/cmDspBuiltIn.c
+++ b/dsp/cmDspBuiltIn.c
@@ -27,6 +27,7 @@
 #include "cmThread.h"
 #include "cmUdpPort.h"
 #include "cmUdpNet.h"
+#include "cmSerialPort.h"
 #include "cmTime.h"
 #include "cmAudioSys.h"
 #include "cmDspSys.h"
diff --git a/dsp/cmDspClass.c b/dsp/cmDspClass.c
index e4b3b78..c82c475 100644
--- a/dsp/cmDspClass.c
+++ b/dsp/cmDspClass.c
@@ -15,6 +15,7 @@
 #include "cmThread.h"
 #include "cmUdpPort.h"
 #include "cmUdpNet.h"
+#include "cmSerialPort.h"
 #include "cmTime.h"
 #include "cmAudioSys.h"
 #include "cmProcObj.h"
@@ -128,7 +129,7 @@ void* cmDspInstAllocate(
     }
 
     // determine the space needed for matrices of known size
-    if( cmIsFlag(flags,kMtxDsvFl) && (rn*argV[i].cn) )
+    if( cmIsFlag(flags,kMtxDsvFl) && (rn*argV[i].cn)>0 )
     {
       unsigned n = cmDsvByteCount( flags, rn, argV[i].cn );
       varDataByteCnt += n;
@@ -238,7 +239,7 @@ void* cmDspInstAllocate(
     }
 
     // assign memory to the matrix types of known size
-    if( cmIsFlag(flags,kMtxDsvFl) && (rn*argV[i].cn) )
+    if( cmIsFlag(flags,kMtxDsvFl) && (rn*argV[i].cn)>0 )
     {
       cmDsvSetMtx(  &ip->varArray[i].value, flags, varDataPtr, rn, argV[i].cn );
       unsigned n = cmDsvByteCount( flags, rn, argV[i].cn );
diff --git a/dsp/cmDspFx.c b/dsp/cmDspFx.c
index ecefb27..5b7a860 100644
--- a/dsp/cmDspFx.c
+++ b/dsp/cmDspFx.c
@@ -22,6 +22,7 @@
 #include "cmThread.h" 
 #include "cmUdpPort.h"
 #include "cmUdpNet.h"
+#include "cmSerialPort.h"
 #include "cmTime.h"
 #include "cmAudioSys.h"
 #include "cmProcObj.h"
diff --git a/dsp/cmDspNet.c b/dsp/cmDspNet.c
index a3fc466..7844a64 100644
--- a/dsp/cmDspNet.c
+++ b/dsp/cmDspNet.c
@@ -16,6 +16,7 @@
 #include "cmThread.h"
 #include "cmUdpPort.h"
 #include "cmUdpNet.h"
+#include "cmSerialPort.h"
 #include "cmTime.h"
 #include "cmAudioSys.h"
 #include "cmProcObj.h"
diff --git a/dsp/cmDspPgm.c b/dsp/cmDspPgm.c
index f22a217..1a95777 100644
--- a/dsp/cmDspPgm.c
+++ b/dsp/cmDspPgm.c
@@ -17,6 +17,7 @@
 #include "cmThread.h"
 #include "cmUdpPort.h"
 #include "cmUdpNet.h"
+#include "cmSerialPort.h"
 #include "cmTime.h"
 #include "cmAudioSys.h"
 #include "cmProcObj.h"
diff --git a/dsp/cmDspPgmKr.c b/dsp/cmDspPgmKr.c
index 68fa9bb..141a319 100644
--- a/dsp/cmDspPgmKr.c
+++ b/dsp/cmDspPgmKr.c
@@ -19,6 +19,7 @@
 #include "cmThread.h"
 #include "cmUdpPort.h"
 #include "cmUdpNet.h"
+#include "cmSerialPort.h"
 #include "cmTime.h"
 #include "cmAudioSys.h"
 #include "cmProcObj.h"
diff --git a/dsp/cmDspPgmKrChain.c b/dsp/cmDspPgmKrChain.c
index f16865d..e5661ba 100644
--- a/dsp/cmDspPgmKrChain.c
+++ b/dsp/cmDspPgmKrChain.c
@@ -18,6 +18,7 @@
 #include "cmUdpPort.h"
 #include "cmUdpNet.h"
 #include "cmTime.h"
+#include "cmSerialPort.h"
 #include "cmAudioSys.h"
 #include "cmProcObj.h"
 #include "cmDspCtx.h"
diff --git a/dsp/cmDspPgmKrChain2.c b/dsp/cmDspPgmKrChain2.c
index f54bc25..21aaf78 100644
--- a/dsp/cmDspPgmKrChain2.c
+++ b/dsp/cmDspPgmKrChain2.c
@@ -17,6 +17,7 @@
 #include "cmThread.h"
 #include "cmUdpPort.h"
 #include "cmUdpNet.h"
+#include "cmSerialPort.h"
 #include "cmTime.h"
 #include "cmAudioSys.h"
 #include "cmProcObj.h"
diff --git a/dsp/cmDspPgmKrTimeLineLite.c b/dsp/cmDspPgmKrTimeLineLite.c
index 2105a17..a9a54d1 100644
--- a/dsp/cmDspPgmKrTimeLineLite.c
+++ b/dsp/cmDspPgmKrTimeLineLite.c
@@ -19,6 +19,7 @@
 #include "cmThread.h"
 #include "cmUdpPort.h"
 #include "cmUdpNet.h"
+#include "cmSerialPort.h"
 #include "cmTime.h"
 #include "cmAudioSys.h"
 #include "cmProcObj.h"
@@ -61,7 +62,7 @@ cmDspRC_t _cmDspSysPgm_TimeLineLite(cmDspSysH_t h, void** userPtrPtr )
   cmDspInst_t* ai0 = cmDspSysAllocInst(h,"AudioIn",     NULL,  1, 0);
   cmDspInst_t* ai1 = cmDspSysAllocInst(h,"AudioIn",     NULL,  1, 1);
   //cmDspInst_t* mip = cmDspSysAllocInst(h,"MidiIn",      NULL,  2, "MOTU - Traveler mk3", "MIDI Port");
-  cmDspInst_t* mip = cmDspSysAllocInst(h,"MidiIn",      NULL,  2, "Apple Inc. - IAC Driver", "Bus 1");
+  //cmDspInst_t* mip = cmDspSysAllocInst(h,"MidiIn",      NULL,  2, "Apple Inc. - IAC Driver", "Bus 1");
   
   cmDspInst_t* tlp  = cmDspSysAllocInst(h,"TimeLine",    "tl",  2, r.tlFn, r.tlPrefixPath );
   cmDspInst_t* scp  = cmDspSysAllocInst(h,"Score",       "sc",  1, r.scFn );
diff --git a/dsp/cmDspPgmKrTksb.c b/dsp/cmDspPgmKrTksb.c
index 27a9d89..184e7a0 100644
--- a/dsp/cmDspPgmKrTksb.c
+++ b/dsp/cmDspPgmKrTksb.c
@@ -17,6 +17,7 @@
 #include "cmThread.h"
 #include "cmUdpPort.h"
 #include "cmUdpNet.h"
+#include "cmSerialPort.h"
 #include "cmTime.h"
 #include "cmAudioSys.h"
 #include "cmProcObj.h"
diff --git a/dsp/cmDspPgmPP.c b/dsp/cmDspPgmPP.c
index db1b651..6ce3886 100644
--- a/dsp/cmDspPgmPP.c
+++ b/dsp/cmDspPgmPP.c
@@ -17,6 +17,7 @@
 #include "cmThread.h"
 #include "cmUdpPort.h"
 #include "cmUdpNet.h"
+#include "cmSerialPort.h"
 #include "cmTime.h"
 #include "cmAudioSys.h"
 #include "cmProcObj.h"
diff --git a/dsp/cmDspPgmPPMain.c b/dsp/cmDspPgmPPMain.c
index 0be9642..c996ae7 100644
--- a/dsp/cmDspPgmPPMain.c
+++ b/dsp/cmDspPgmPPMain.c
@@ -17,6 +17,7 @@
 #include "cmThread.h"
 #include "cmUdpPort.h"
 #include "cmUdpNet.h"
+#include "cmSerialPort.h"
 #include "cmTime.h"
 #include "cmAudioSys.h"
 #include "cmProcObj.h"
diff --git a/dsp/cmDspUi.c b/dsp/cmDspUi.c
index ad022d5..2aff36c 100644
--- a/dsp/cmDspUi.c
+++ b/dsp/cmDspUi.c
@@ -19,6 +19,7 @@
 #include "cmThread.h"
 #include "cmUdpPort.h"
 #include "cmUdpNet.h"
+#include "cmSerialPort.h"
 #include "cmTime.h"
 #include "cmAudioSys.h"