diff --git a/source/dcell/screen.d b/source/dcell/screen.d
index c1239ba..7690921 100644
--- a/source/dcell/screen.d
+++ b/source/dcell/screen.d
@@ -129,14 +129,6 @@ interface Screen
      */
     void enableFocus(bool b);
 
-    /**
-     * Do we have a mouse? This may be overly optimistic for some
-     * terminals, but it is a good first guess.
-     *
-     * Returns: true if the terminal is thought to support mouse events
-     */
-    bool hasMouse();
-
     /**
      * Enable mouse mode.  This can cause terminals/emulators
      * to behave differently -- for example affecting the ability
diff --git a/source/dcell/termio.d b/source/dcell/termio.d
index 40c3dc4..8f39681 100644
--- a/source/dcell/termio.d
+++ b/source/dcell/termio.d
@@ -79,7 +79,7 @@ interface TtyImpl
     void stop();
 
     /**
-     * Close the ttye device.
+     * Close the tty device.
      */
     void close();
 
@@ -250,7 +250,7 @@ version (Posix)
 
         void write(string s)
         {
-            file.rawWrite(s);
+            file.write(s);
         }
 
         bool resized()
diff --git a/source/dcell/ttyscreen.d b/source/dcell/ttyscreen.d
index d1e41c8..c802eca 100644
--- a/source/dcell/ttyscreen.d
+++ b/source/dcell/ttyscreen.d
@@ -86,6 +86,11 @@ class TtyScreen : Screen
         enum string setFgBgRGB = "\x1b[38;2;%d;%d;%d;48;2;%d;%d;%dm"; // for RGB, in one shot
         enum string resetFgBg = "\x1b[39;49m"; // ECMA defined
         enum string requestDA = "\x1b[c"; // request primary device attributes
+        enum string disableMouse = "\x1b[?1000l\x1b[?1002l\x1b[?1003l\x1b[?1006l";
+        enum string enableButtons = "\x1b[?1000h";
+        enum string enableDrag = "\x1b[?1002h";
+        enum string enableMotion = "\x1b[?1003h";
+        enum string mouseSgr = "\x1b[?1006h"; // SGR reporting (use with other enables)
 
         // these can be overridden (e.g. disabled for legacy)
         string enterURL = "\x1b]8;;%s\x1b\\";
@@ -240,7 +245,7 @@ class TtyScreen : Screen
         puts(vt.clear);
         puts(vt.exitKeypad);
         puts(vt.disablePaste);
-        enableMouse(MouseEnable.disable);
+        puts(vt.disableMouse);
         puts(vt.disableFocus);
         flush();
         stopping.set(true);
@@ -316,11 +321,6 @@ class TtyScreen : Screen
         sendPasteEnable(b);
     }
 
-    bool hasMouse() const pure
-    {
-        return true;
-    }
-
     int colors() const pure
     {
         return vt.numColors;
@@ -684,17 +684,25 @@ private:
         // there is no standard terminfo sequence for reporting this
         // information.
         // start by disabling everything
-        puts("\x1b[?1000l\x1b[?1002l\x1b[?1003l\x1b[?1006l");
+        puts(vt.disableMouse);
         // then turn on specific enables
         if (en & MouseEnable.buttons)
-            puts("\x1b[?1000h");
+        {
+            puts(vt.enableButtons);
+        }
         if (en & MouseEnable.drag)
-            puts("\x1b[?1002h");
+        {
+            puts(vt.enableDrag);
+        }
         if (en & MouseEnable.motion)
-            puts("\x1b[?1003h");
+        {
+            puts(vt.enableMotion);
+        }
         // and if any are set, we need to send this
         if (en & MouseEnable.all)
-            puts("\x1b[?1006h");
+        {
+            puts(vt.mouseSgr);
+        }
         flush();
     }