diff --git a/src/rhd_dac.c b/src/rhd_dac.c
index c34970c..882b55e 100644
--- a/src/rhd_dac.c
+++ b/src/rhd_dac.c
@@ -237,8 +237,10 @@ DACModeValid(struct rhdOutput *Output, DisplayModePtr Mode)
     if (Mode->Clock < 20000)
 	return MODE_CLOCK_LOW;
 
-    if (Mode->Clock > 400000)
+    if (Mode->Clock > 400000) {
+        fprintf(stderr, "danl - high in rhd_dac.c 241\n");
 	return MODE_CLOCK_HIGH;
+    }
 
     return MODE_OK;
 }
diff --git a/src/rhd_lvtma.c b/src/rhd_lvtma.c
index 5aba1a1..c3d5877 100644
--- a/src/rhd_lvtma.c
+++ b/src/rhd_lvtma.c
@@ -573,8 +573,10 @@ TMDSBModeValid(struct rhdOutput *Output, DisplayModePtr Mode)
     if (Mode->Clock < 25000)
 	return MODE_CLOCK_LOW;
 
-    if (Mode->Clock > 165000)
-	return MODE_CLOCK_HIGH;
+    if (Mode->Clock > 165000) {
+        fprintf(stderr, "danl - high *ignore* in rhd_lvtma.c 577\n");
+        //return MODE_CLOCK_HIGH;
+    }
 
     return MODE_OK;
 }
diff --git a/src/rhd_modes.c b/src/rhd_modes.c
index 347a54a..1ca10f7 100644
--- a/src/rhd_modes.c
+++ b/src/rhd_modes.c
@@ -721,8 +721,10 @@ rhdMonitorValid(struct rhdMonitor *Monitor, DisplayModePtr Mode)
         return MODE_VSYNC;
 
     if (Monitor->Bandwidth &&
-	(Mode->SynthClock > (Monitor->Bandwidth * (1 + SYNC_TOLERANCE))))
+        (Mode->SynthClock > (Monitor->Bandwidth * (1 + SYNC_TOLERANCE)))) {
+        fprintf(stderr, "danl - high in rhd_modes.c 725\n");
         return MODE_CLOCK_HIGH;
+    }
 
     if (Monitor->ReducedAllowed) {
 	if (((Mode->CrtcHTotal - Mode->CrtcHDisplay) != 160) && /* CVT -r */
diff --git a/src/rhd_pll.c b/src/rhd_pll.c
index c48db72..85da0fa 100644
--- a/src/rhd_pll.c
+++ b/src/rhd_pll.c
@@ -674,8 +674,10 @@ RHDPLLValid(struct rhdPLL *PLL, CARD32 Clock)
 
     if (Clock < PLL->PixMin)
 	return MODE_CLOCK_LOW;
-    if (Clock > PLL->PixMax)
+    if (Clock > PLL->PixMax) {
+        fprintf(stderr, "danl - high in rhd_pll.c 678\n");
 	return MODE_CLOCK_HIGH;
+    }
 
     if (PLL->Valid)
 	return PLL->Valid(PLL, Clock);
diff --git a/src/rhd_tmds.c b/src/rhd_tmds.c
index b0ff374..0810e99 100644
--- a/src/rhd_tmds.c
+++ b/src/rhd_tmds.c
@@ -119,8 +119,10 @@ TMDSAModeValid(struct rhdOutput *Output, DisplayModePtr Mode)
     if (Mode->Clock < 25000)
 	return MODE_CLOCK_LOW;
 
-    if (Mode->Clock > 165000)
-	return MODE_CLOCK_HIGH;
+    if (Mode->Clock > 165000) {
+        fprintf(stderr, "danl - high *ignore* in rhd_tmds.c 123\n");
+        //return MODE_CLOCK_HIGH;
+    }
 
     return MODE_OK;
 }