diff --git a/src/file_transfers.py b/src/file_transfers.py
index 6bb81fc..01d8449 100644
--- a/src/file_transfers.py
+++ b/src/file_transfers.py
@@ -55,7 +55,7 @@ class FileTransfer(QtCore.QObject):
     def cancelled(self):
         if hasattr(self, '_file'):
             self._file.close()
-        self._state_changed.signal.emit(TOX_FILE_CONTROL['CANCEL'], self._done / self._size)
+        self._state_changed.signal.emit(TOX_FILE_CONTROL['CANCEL'], self._done / self._size if self._size else 0)
 
     def send_control(self, control):
         if self._tox.file_control(self._friend_number, self._file_number, control):
diff --git a/src/mainscreen.py b/src/mainscreen.py
index fc59f61..0ea3af1 100644
--- a/src/mainscreen.py
+++ b/src/mainscreen.py
@@ -99,7 +99,7 @@ class MainWindow(QtGui.QMainWindow):
         self.fileTransferButton.setGeometry(QtCore.QRect(460, 65, 90, 55))
         self.fileTransferButton.setObjectName("fileTransferButton")
         self.sendMessageButton = QtGui.QPushButton(Form)
-        self.sendMessageButton.setGeometry(QtCore.QRect(550, 10, 60, 110))
+        self.sendMessageButton.setGeometry(QtCore.QRect(550, 10, 70, 110))
         self.sendMessageButton.setObjectName("sendMessageButton")
         self.sendMessageButton.clicked.connect(self.send_message)
 
@@ -208,7 +208,7 @@ class MainWindow(QtGui.QMainWindow):
 
     def setup_right_center(self, widget):
         self.messages = QtGui.QListWidget(widget)
-        self.messages.setGeometry(0, 0, 600, 250)
+        self.messages.setGeometry(0, 0, 620, 250)
 
     def initUI(self, tox):
         self.setMinimumSize(920, 520)