Index: trunk/BNC/bncwindow.cpp
===================================================================
--- trunk/BNC/bncwindow.cpp	(revision 3884)
+++ trunk/BNC/bncwindow.cpp	(revision 3885)
@@ -1212,5 +1212,5 @@
   _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 'Combination' 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>"));
-  _teqcActionComboBox->setWhatsThis(tr("<p>BNC allows to edit or concatinate RINEX v2 or v3 files or to perform a quality control.</p>"));
+  _teqcActionComboBox->setWhatsThis(tr("<p>BNC allows to edit or concatinate RINEX v2 or v3 files or to perform a quality control.</p><p>In this it follows UNAVCO's famous 'teqc' program developed by Lou Estey.</p>"));
   _teqcEditOptionButton->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>"));