Index: trunk/BNC/src/bncwindow.cpp
===================================================================
--- trunk/BNC/src/bncwindow.cpp	(revision 4529)
+++ trunk/BNC/src/bncwindow.cpp	(revision 4530)
@@ -1037,20 +1037,20 @@
 
   _reqcOutObsLineEdit = new QLineEdit(settings.value("reqcOutObsFile").toString());
-  _reqcOutObsLineEdit->setWhatsThis(tr("Specify the full path to an output file."));
+  _reqcOutObsLineEdit->setWhatsThis(tr("Specify the full path to a RINEX observation output file."));
   _reqcOutObsLineEdit->setMinimumWidth(15*ww);
   _reqcOutObsLineEdit->setMaximumWidth(15*ww);
 
   _reqcOutNavLineEdit = new QLineEdit(settings.value("reqcOutNavFile").toString());
-  _reqcOutNavLineEdit->setWhatsThis(tr("Specify the full path to an output file."));
+  _reqcOutNavLineEdit->setWhatsThis(tr("Specify the full path to a RINEX navigation output file."));
   _reqcOutNavLineEdit->setMinimumWidth(15*ww);
   _reqcOutNavLineEdit->setMaximumWidth(15*ww);
 
   _reqcOutLogLineEdit = new QLineEdit(settings.value("reqcOutLogFile").toString());
-  _reqcOutLogLineEdit->setWhatsThis(tr("Specify the full path to an output file."));
+  _reqcOutLogLineEdit->setWhatsThis(tr("Specify the full path to a logfile."));
   _reqcOutLogLineEdit->setMinimumWidth(15*ww);
   _reqcOutLogLineEdit->setMaximumWidth(15*ww);
 
   _reqcPlotDirLineEdit = new QLineEdit(settings.value("reqcPlotDir").toString());
-  _reqcPlotDirLineEdit->setWhatsThis(tr("Specify the directory name for plots."));
+  _reqcPlotDirLineEdit->setWhatsThis(tr("Specify the directory name for saving plots."));
   _reqcPlotDirLineEdit->setMinimumWidth(15*ww);
   _reqcPlotDirLineEdit->setMaximumWidth(15*ww);
@@ -1245,5 +1245,5 @@
   _pppCorrMountLineEdit->setWhatsThis(tr("<p>You must specify an orbit/clock Broadcast Ephemeris corrections stream by its mountpoint from the 'Streams' list below. Example: 'CLK10'</p><p>Note that BNC can produce an internal PPP solution from combined Broadcast Ephemeris corrections as specified under 'Combine Corrections' if you introduce keyword 'INTERNAL' as the corrections mountpoint.</p>"));
   _pppSPPComboBox->setWhatsThis(tr("<p>Choose between plain Single Point Positioning (SPP) and Precise Point Positioning (PPP) in 'Realtime' or 'Post-Processing' mode.</p><p>When in 'Post-Processing mode:<ul><li>Specifying a RINEX Observation, a RINEX Navigation and a Broadcast Correction file leads to a PPP solution.</li><li>Specifying only a RINEX Observation and a RINEX Navigation file and no Broadcast Correction file leads to a SPP solution.</ul></p>"));
-  _reqcActionComboBox->setWhatsThis(tr("<p>BNC allows to edit or concatenate RINEX v2 or v3 files or to perform a quality check.</p><p>In this it follows UNAVCO's famous 'teqc' program.</p>"));
+  _reqcActionComboBox->setWhatsThis(tr("<p>BNC allows to edit or concatenate RINEX v2 or v3 files or to perform a quality check following UNAVCO's famous 'teqc' program.</p>"));
   _reqcEditOptionButton->setWhatsThis(tr("<p>Specify options for editing RINEX v2 or v3 files.</p>"));
   _pppUsePhaseCheckBox->setWhatsThis(tr("<p>By default BNC applies a PPP solution using an ionosphere free P3 linear combination of code observations.</p><p>Tick 'Use phase obs' for an ionosphere free L3 linear combination of phase observations.</p>"));