Update BUILDING.md

Author: illusion0001

BUILDING.md

@@ -115,7 +115,7 @@ Further, for the Release build, the application must be run from a secure locati
 
 # 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:
+You will encounter an error message such as: `"A referral was returned from the server"`. This usually means a certificate mismatch or not exist. The same certificate that was used to sign the application must be installed on the other machine. Open command prompt as administrator and run the following:
 
     ```bat
     > certutil -addstore root testcert.cer