diff --git a/PsychSourceGL/Source/Common/IOPort/IOPort.c b/PsychSourceGL/Source/Common/IOPort/IOPort.c
index 2fbfb13922..9b978d0173 100755
--- a/PsychSourceGL/Source/Common/IOPort/IOPort.c
+++ b/PsychSourceGL/Source/Common/IOPort/IOPort.c
@@ -369,7 +369,7 @@ PsychError IOPORTOpenSerialPort(void)
         "or on OS/X and Linux in 'Cooked' processing mode as line delimiter. A setting of -1 will try to disable the line terminator.\n\n"
         "DTR=os default    -- Setting for 'Data Terminal Ready' pin: 0 or 1.\n\n"
         "RTS=os default    -- Setting for 'Request To Send' pin: 0 or 1.\n\n"
-        "BreakBehaviour=Ignore -- Behaviour if a 'Break Condition' is detected on the line: Ignore, Flush, Zero. On Windows, this setting is ignored.\n\n"
+        "BreakBehaviour=Ignore -- Behaviour if a 'Break Condition' is detected on the line: Ignore, Flush, Zero. On Windows, only 'Ignore' is allowed.\n\n"
         "OutputBufferSize=4096 -- Size of output buffer in bytes.\n\n"
         "InputBufferSize=4096 -- Size of input buffer in bytes. You can't read more than that amount per read command.\n\n"
         "HardwareBufferSizes=input,output -- Set size of the hardware driver internal input and output buffers in bytes. "
diff --git a/PsychSourceGL/Source/Windows/IOPort/PsychSerialWindowsGlue.c b/PsychSourceGL/Source/Windows/IOPort/PsychSerialWindowsGlue.c
index 3a65481e0a..99e3c74954 100755
--- a/PsychSourceGL/Source/Windows/IOPort/PsychSerialWindowsGlue.c
+++ b/PsychSourceGL/Source/Windows/IOPort/PsychSerialWindowsGlue.c
@@ -762,6 +762,15 @@ PsychError PsychIOOSConfigureSerialPort( PsychSerialDeviceRecord* device, const
     //        updatetermios = TRUE;
     //    }
 
+    // Handling of Break condition:
+    if ((p = strstr(configString, "BreakBehaviour="))) {
+        if (p != strstr(p, "BreakBehaviour=Ignore")) {
+            printf("Invalid break behaviour %s not accepted (Valid on MS-Windows: Ignore)!", p);
+            return(PsychError_user);
+        }
+        updatetermios = TRUE;
+    }
+
     // Handling of data bits:
     if ((p = strstr(configString, "DataBits="))) {
         // Clear all databit settings:
@@ -1387,8 +1396,11 @@ int PsychIOOSCheckError(PsychSerialDeviceRecord* device, char* inerrmsg)
         return(0xdeadbeef);
     }
 
+    // Ignore the break condition altogether, meaning no error notification and no error condition (which otherwise could result in discarding received data).
+    estatus &= ~CE_BREAK;
+
     if (estatus > 0 && inerrmsg) {
-        if (estatus & CE_BREAK) { sprintf(errmsg, "IOPort: Break condition on receive line detected.\n"); strcat(inerrmsg, errmsg); }
+        if (estatus & CE_BREAK) { sprintf(errmsg, "IOPort: Break condition on receive line detected.\n"); strcat(inerrmsg, errmsg); } // maybe useful in the future
         if (estatus & CE_FRAME) { sprintf(errmsg, "IOPort: Data packet framing error detected.\n"); strcat(inerrmsg, errmsg); }
         if (estatus & CE_OVERRUN) { sprintf(errmsg, "IOPort: Character buffer overrun detected.\n"); strcat(inerrmsg, errmsg); }
         if (estatus & CE_RXOVER) { sprintf(errmsg, "IOPort: Receive buffer overflow detected.\n"); strcat(inerrmsg, errmsg); }