diff --git a/content/guides/running_applications/how_to_setup_x11_forwarding.md b/content/guides/running_applications/how_to_setup_x11_forwarding.md
index 743ae2f20d5af1733c95791a7d0815be76a5a6b8..cefe284ae8a663efdeadc7146be3acafd451abc7 100644
--- a/content/guides/running_applications/how_to_setup_x11_forwarding.md
+++ b/content/guides/running_applications/how_to_setup_x11_forwarding.md
@@ -4,7 +4,7 @@ description = "Use X11 forwarding to view GUI programs remotely"
weight = "35"
+++
-##### If you are connecting to HCC clusters via a PC running Windows, please take the following steps to setup X11 forwarding.
+### If you are connecting to HCC clusters via a PC running Windows, please take the following steps to setup X11 forwarding.
1. Download Xming to your local PC and install. Download
link: https://downloads.sourceforge.net/project/xming/Xming/6.9.0.31/Xming-6-9-0-31-setup.exe
@@ -21,9 +21,7 @@ weight = "35"
6. Close the xeyes application by "Ctrl + c" from the terminal or click
the close button on the up-right corner of the graphical window.
-
-
-##### If you are connecting to HCC clusters via a Macintosh, please take the following steps to setup X11 forwarding.
+### If you are connecting to HCC clusters via a Macintosh, please take the following steps to setup X11 forwarding.
- Check the OS version on your Mac, if it's below 10.8., you can simply type `ssh -Y username@hostname` in your terminal to login.
@@ -39,7 +37,7 @@ weight = "35"
click the close button on the up-left corner of the graphical
window.
-##### If you are connecting to HCC clusters via a Linux laptop, please take the following steps to setup X11 forwarding.
+### If you are connecting to HCC clusters via a Linux laptop, please take the following steps to setup X11 forwarding.
1. Open the remote client terminal.
2. Type `ssh -Y username@hostname`" in your terminal to login.
@@ -48,7 +46,7 @@ weight = "35"
4. Close the xeyes application by "Ctrl + c" from the terminal or click
the close button on the up-right corner of the graphical window.
-#### Special note about Indirect GLX
+### Special note about Indirect GLX
If you are using OS X or Linux, you may need to re-enable indirect GLX (IGLX) in order for
the GUI application to run properly. IGLX was disabled for security reasons starting with
@@ -57,17 +55,19 @@ change is available at [this link](https://www.phoronix.com/scan.php?page=news_i
To re-enable IGLX, use the follwing instructions:
-##### OS X
+#### OS X
Open a terminal on your Mac, and run the following command:
{{% panel theme="info" header="Enable ILGX on OS X" %}}
{{< highlight bash >}}
-$ defaults write org.macosforge.xquartz.X11 enable_iglx -bool true
+$ sudo defaults write org.macosforge.xquartz.X11 enable_iglx -bool true
{{< /highlight >}}
{{% /panel %}}
-##### Linux
+Log out or restart your Mac for the changes to take effect.
+
+#### Linux
You will need to create a small Xorg configuration file. This requires `root` access, so
run commands with care.