Update BUILDING.md

BUILDING.md

@@ -109,4 +109,14 @@ You must run the PresentMon Capture Application from its directory, with the *Pr
 > PresentMon.exe
 ```
 
-Further, for the Release build, the application must be run from a secure location (e.g. "Program Files" or "System32") so it will need to be copied there first. The Release build also cannot be started from Visual Studio, irregardless of whether the debugger is attached, and even if VS is running with admin privilege.
+## Capture Application Release Build Notice
+
+Further, for the Release build, the application must be run from a secure location (e.g. `"Program Files"` or `"System32"`) so it will need to be copied there first. The Release build also cannot be started from Visual Studio, irregardless of whether the debugger is attached, and even if VS is running with admin privilege.
+
+# Running PresentMon on other systems
+
+You will encounter an error message such as: `"A referral has returned from server"`. This usually means a certificate mismatch or not exist. The same certificate that was used to sign the application must be installed. Open command prompt as administrator and run the following:
+
+    ```bat
+    > certutil -addstore root testcert.cer
+    ```