diff -Naur pysol-4.82.orig/src/tk/selecttile.py pysol-4.82/src/tk/selecttile.py
--- pysol-4.82.orig/src/tk/selecttile.py	2003-09-02 15:06:21 +0600
+++ pysol-4.82/src/tk/selecttile.py	2005-06-07 17:13:58 +0600
@@ -167,7 +167,7 @@
             c = tkColorChooser.askcolor(master=self.top, initialcolor=self.tablecolor,
                                         title="Select table color")
             if c and c[1]:
-                self.key = string.lower(c[1])
+                self.key = string.lower(c[1].string)
                 self.tablecolor = self.key
                 self.tree.updateSelection(self.key)
                 self.updatePreview(self.key)