=== modified file 'src/wizardpen.c'
--- src/wizardpen.c	2011-11-11 00:49:02 +0000
+++ src/wizardpen.c	2011-11-17 14:25:12 +0000
@@ -1230,9 +1230,9 @@
         {
             float ratio = (float)priv->screenX / priv->screenY;
             if (ratio > 1)
-                report_x = min(report_x*ratio*ratio, priv->bottomX);
+                report_x = min(priv->topX + (report_x-priv->topX)*ratio*ratio, priv->bottomX);
             else
-                report_y = min(report_y/(ratio*ratio), priv->bottomY);
+                report_y = min(priv->topY + (report_y-priv->topY)/(ratio*ratio), priv->bottomY);
         }
 
         report_buttons = buttons;