diff --git a/workflows/gobrowser.py b/workflows/gobrowser.py
index e716b9d..40a7bc6 100644
--- a/workflows/gobrowser.py
+++ b/workflows/gobrowser.py
@@ -633,17 +633,17 @@ class DagPlot(plots.Plot):
     def _add_ic_spin_buttons(self):
         """Adds spin buttons to the toolbar for selecting minimum and maximum
         threshold values on information content."""
-        sb_min = gtk.SpinButton()
+        sb_min = gtk.SpinButton(digits=2)
         sb_min.set_range(0, 100)
-        sb_min.set_value(1)
-        sb_min.set_increments(1, 3)
+        sb_min.set_value(0)
+        sb_min.set_increments(.1, 1.)
         sb_min.connect('value-changed', self._on_ic_value_changed)
         self._ic_sb_min = sb_min
 
-        sb_max = gtk.SpinButton()
+        sb_max = gtk.SpinButton(digits=2)
         sb_max.set_range(0, 100)
         sb_max.set_value(1)
-        sb_max.set_increments(1, 3)
+        sb_max.set_increments(.1, 1.)
         sb_max.connect('value-changed', self._on_ic_value_changed)
         self._ic_sb_max = sb_max
 
@@ -694,7 +694,7 @@ class DagPlot(plots.Plot):
         icnodes = ic.existing_identifiers('go-terms', self.nodes)
         icindices = ic.get_indices('go-terms', icnodes)
         a = ravel(ic.asarray()[icindices])
-        ic_good = set(array(icnodes)[(a>ic_min) & (a<ic_max)])
+        ic_good = set(array(icnodes)[(a>=ic_min) & (a<=ic_max)])
 
         sizes = zeros(len(self.nodes))
         visible = set()
@@ -728,7 +728,10 @@ class DagPlot(plots.Plot):
         assert y1<=y2
         
         index = nonzero((xdata>x1) & (xdata<x2) & (ydata>y1) & (ydata<y2))[0]
-        ids = self.visible.intersection([self.nodes[i] for i in index])
+        if getattr(main.workflow, 'current_ic', None) != None:
+            ids = self.visible.intersection([self.nodes[i] for i in index])
+        else:
+            ids = set([self.nodes[i] for i in index])
         ids = self.update_selection(ids, key)
         self.selection_listener(self.current_dim, ids)
 
@@ -798,11 +801,15 @@ class DagPlot(plots.Plot):
 
         map_vec = zeros(len(self.nodes))
         for i, n in enumerate(self.nodes):
-            map_vec[i] = d.get(n, -1)
+            map_vec[i] = d.get(n, vec_min)
 
         # update facecolors
         self.node_collection.set_array(map_vec)
         self.node_collection.set_clim(vec_min, vec_max)
         self.node_collection.update_scalarmappable() #sets facecolors from array
-        self.canvas.draw()
+        self._ic_sb_min.set_range(0, vec_max)
+        self._ic_sb_min.set_value(vec_min)
+        self._ic_sb_max.set_range(0, vec_max)
+        self._ic_sb_max.set_value(vec_max)
 
+        self.canvas.draw()