diff --git a/INSTALL.debian b/INSTALL.debian
index e91ee3dc4..c042bbf92 100644
--- a/INSTALL.debian
+++ b/INSTALL.debian
@@ -63,7 +63,7 @@ gem install --no-ri --no-rdoc bundler
 
 # Install Passenger
 gem install --no-ri --no-rdoc -v 3.0.8 passenger
-rvm exec passenger-install-nginx-module
+rvm exec passenger-install-nginx-module -a
 rm /opt/nginx/conf/*.default
 
 if [ $? -ne 0 ]; then
diff --git a/app/assets/stylesheets/application.css.scss b/app/assets/stylesheets/application.css.scss
index d68e13553..5c9a15f22 100644
--- a/app/assets/stylesheets/application.css.scss
+++ b/app/assets/stylesheets/application.css.scss
@@ -691,9 +691,14 @@ div#c-favorites {
 /*** Posts ***/
 
 article.post-preview {
-  margin-right: 4em;
-  margin-bottom: 4em;
+  height: 150px;
+  width: 150px;
+  margin-right: 30px;
+  margin-bottom: 30px;
+  display: inline-block;
   float: left;
+  text-align: center;
+  vertical-align: middle;
 }
 
 article.post-preview.blacklisted-active {