Index: trunk/BNC/bncwindow.cpp
===================================================================
--- trunk/BNC/bncwindow.cpp	(revision 4180)
+++ trunk/BNC/bncwindow.cpp	(revision 4181)
@@ -499,7 +499,7 @@
 
   _cmbSamplSpinBox = new QSpinBox;
-  _cmbSamplSpinBox->setMinimum(0);
+  _cmbSamplSpinBox->setMinimum(10);
   _cmbSamplSpinBox->setMaximum(60);
-  _cmbSamplSpinBox->setSingleStep(5);
+  _cmbSamplSpinBox->setSingleStep(10);
   _cmbSamplSpinBox->setMaximumWidth(9*ww);
   _cmbSamplSpinBox->setValue(settings.value("cmbSampl").toInt());