diff --git a/.travis.yml b/.travis.yml
index 31a768c..1afb9e7 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,21 +1,36 @@
 language: python
 python:
 - '2.7'
-install:
-- sudo add-apt-repository -y ppa:texlive-backports/ppa
-- sudo apt-get update
-- sudo apt-get install texlive make
+addons:
+  apt:
+    packages:
+    - texlive-latex-recommended
+    - texlive-latex-extra
+    - texlive-fonts-recommended
+    - texlive-font-utils
+    - texlive-generic-recommended
+    - psutils
+    - ps2eps
+    - dvidvi
+    - purifyeps
+    - t1utils
+    - dot2tex
+    - texlive-luatex
+    - lmodern
+    - tipa
+    - prosper
+    - latex-beamer
+    - latex-xcolor
+    - pgf
 script:
+- apt list --installed
+- epstopdf
+- dvips
 - (cd sheets; LATEX_OPTS="-interaction=nonstopmode -shell-escape" make pdfrelease)
 deploy:
-  provider: s3
-  access_key_id: AKIAJNGHJWMQEU6QAIPQ
-  secret_access_key:
-    secure: tviNwD7V1A4WRzCwnRGXTHUf6kdbEG+7X7AxnTnSEf+ar1iXl/1aplLKFccc9vwzlGy0sUVqv0wg0kmQkIMhUhdZovOD4gUnOARUZzkTHj9L0apIb2gxLyEyYHCRFiIKLT6Vto8iPbU3ALCoQAhk2oQwM+dznQb6lg+U5HpRK8U=
-  bucket: livewires-worksheets
-  local-dir: release
-  upload-dir: "$TRAVIS_BUILD_NUMBER"
-  acl: !ruby/string:HighLine::String public_read
-  skip_cleanup: true
+  provider: releases
+  api_key:
+    secure: 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
+  file: release/livewires-pdfs.tar.gz
   on:
-    repo: livewires/python
+    repo: tjvr/livewires
diff --git a/sheets/games/minesweeper.ltx b/sheets/games/minesweeper.ltx
index bc261f2..a25bc5e 100755
--- a/sheets/games/minesweeper.ltx
+++ b/sheets/games/minesweeper.ltx
@@ -231,6 +231,9 @@ Now we get on to our boxes on the screen.
 \begin{program}
 class GridBox(boards.GameCell):
   def __init__(self, screen, i, j):
+    self.init_gridbox(screen, i, j)
+
+  def init_gridbox(self, screen, i, j):
     self.init_gamecell(screen, i, j)
     self.flagged = 0
     self.shown = 0
@@ -264,9 +267,9 @@ so that it can be seen.  The following code will do the trick:
 
 \begin{program}
 class Mine(boards.Container, GridBox):
-  def __init(self, board, i, j):
-    self.init_gridbox(board, i, j)
+  def __init__(self, board, i, j):
     self.init_container(['image', 'flag'])
+    self.init_gridbox(board, i, j)
 
   def reveal_mine(self):
     self.set_colour(colour.red)
diff --git a/sheets/games/tetris.ltx b/sheets/games/tetris.ltx
index 5842abb..c666f76 100755
--- a/sheets/games/tetris.ltx
+++ b/sheets/games/tetris.ltx
@@ -619,8 +619,8 @@ tx, ty = self.cell_to_coords(WIDTH/2, -1)
 self.status_message = games.Text(self, tx, ty+BOX_SIZE/2,
                                  "TETRIS", TITLE_SIZE, colour.white)
 tx, ty = self.cell_to_coords(WIDTH/2, HEIGHT)
-self.score_message = game.Text(self, tx, ty+BOX_SIZE/2,
-                               "Score: 0", SCORE_SIZE, colour.white)
+self.score_message = games.Text(self, tx, ty+BOX_SIZE/2,
+                                "Score: 0", SCORE_SIZE, colour.white)
 self.score = 0
 \end{program}