Corrected behaviour of raw_input under windows. Recursive wx.yield is

not that supported... So removed it and do simple modal call in non 
threaded mode.

IPython/gui/wx/ipython_view.py

@@ -76,10 +76,12 b' class WxNonBlockingIPShell(NonBlockingIPShell):'
         """ A replacement from python's raw_input.
         """
         self.answer = None
+        if(self._threading == True):			
         wx.CallAfter(self._yesNoBox,  prompt)
         while self.answer is None:
-            wx.Yield()
             time.sleep(.1)
+        else:
+			self._yesNoBox(prompt)
         return self.answer
         
     def _yesNoBox(self, prompt):
@@ -655,6 +657,8 b' class IPShellWidget(wx.Panel):'
         lines_to_execute = lines_to_execute.replace('\r','')
         self.IP.do_execute(lines_to_execute.encode(ENCODING))
         self.updateHistoryTracker(lines)
+        if(self.text_ctrl.getCursorPos()!=0):
+            self.text_ctrl.removeCurrentLine()
         self.setCurrentState('WAIT_END_OF_EXECUTION')
         
     def evtStateExecuteDone(self,evt):