diff --git a/00_Introduction.ipynb b/00_Introduction.ipynb
index 3b944b9..d36011f 100644
--- a/00_Introduction.ipynb
+++ b/00_Introduction.ipynb
@@ -39,7 +39,7 @@
     "### Configuring virtual environment (the generic way)\n",
     "\n",
     "  * `git clone https://github.com/pypa/virtualenv`\n",
-    "  * Enter the cloned repository and type `virtualenv.py --python /usr/bin/python2.7 --no-site-packages ~/mlpractical`\n",
+    "  * Enter the cloned repository and type `./virtualenv.py --python /usr/bin/python2.7 --no-site-packages ~/mlpractical`\n",
     "  * Activate the environment by typing `source ~/mlpractical/bin/activate` (to leave the virtual environment one may type `decativate`). Environments need to be activated every time ones start the new session (unless you do this explicitly in the shell starting scripts, i.e. `~/.bashrc`).\n",
     "\n",
     "### Configuring virtual environment (more comfy DICE wrapper; ignore if you did the generic way above)\n",
@@ -129,12 +129,53 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 1,
    "metadata": {
     "collapsed": false,
     "scrolled": true
    },
-   "outputs": [],
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "\u001b[H\u001b[2Jatlas_3_10_blas_threads_info:\n",
+      "    libraries = ['tatlas']\n",
+      "    library_dirs = ['/usr/lib64/atlas']\n",
+      "    define_macros = [('HAVE_CBLAS', None), ('ATLAS_INFO', '\"\\\\\"3.10.1\\\\\"\"')]\n",
+      "    language = c\n",
+      "    include_dirs = ['/usr/include']\n",
+      "lapack_opt_info:\n",
+      "    libraries = ['tatlas', 'tatlas', 'tatlas']\n",
+      "    library_dirs = ['/usr/lib64/atlas']\n",
+      "    define_macros = [('ATLAS_INFO', '\"\\\\\"3.10.1\\\\\"\"')]\n",
+      "    language = f77\n",
+      "    include_dirs = ['/usr/include']\n",
+      "blas_opt_info:\n",
+      "    libraries = ['tatlas']\n",
+      "    library_dirs = ['/usr/lib64/atlas']\n",
+      "    define_macros = [('HAVE_CBLAS', None), ('ATLAS_INFO', '\"\\\\\"3.10.1\\\\\"\"')]\n",
+      "    language = c\n",
+      "    include_dirs = ['/usr/include']\n",
+      "openblas_info:\n",
+      "  NOT AVAILABLE\n",
+      "openblas_lapack_info:\n",
+      "  NOT AVAILABLE\n",
+      "atlas_3_10_threads_info:\n",
+      "    libraries = ['tatlas', 'tatlas', 'tatlas']\n",
+      "    library_dirs = ['/usr/lib64/atlas']\n",
+      "    define_macros = [('ATLAS_INFO', '\"\\\\\"3.10.1\\\\\"\"')]\n",
+      "    language = f77\n",
+      "    include_dirs = ['/usr/include']\n",
+      "lapack_mkl_info:\n",
+      "  NOT AVAILABLE\n",
+      "blas_mkl_info:\n",
+      "  NOT AVAILABLE\n",
+      "mkl_info:\n",
+      "  NOT AVAILABLE\n"
+     ]
+    }
+   ],
    "source": [
     "%clear\n",
     "import numpy\n",