Cant have col less than 0

diff --git a/src/jalview/gui/ScalePanel.java b/src/jalview/gui/ScalePanel.java
index a6027aa..54924d0 100755 (executable)
--- a/src/jalview/gui/ScalePanel.java
+++ b/src/jalview/gui/ScalePanel.java
@@ -207,6 +207,8 @@ public class ScalePanel extends JPanel implements MouseMotionListener, MouseList
         mouseDragging = true;\r
 \r
         int res = (evt.getX() / av.getCharWidth()) + av.getStartRes();\r
+        if(res<0)\r
+          res = 0;\r
 \r
         if(av.hasHiddenColumns)\r
           res = av.getColumnSelection().adjustForHiddenColumns(res);\r
@@ -229,7 +231,6 @@ public class ScalePanel extends JPanel implements MouseMotionListener, MouseList
 \r
 \r
 \r
-\r
         SequenceGroup sg = av.getSelectionGroup();\r
 \r
         if (sg != null)\r