diff --git a/PROMS/Baseline/frmBaseline.cs b/PROMS/Baseline/frmBaseline.cs
index 7c7f89e1..d634f138 100644
--- a/PROMS/Baseline/frmBaseline.cs
+++ b/PROMS/Baseline/frmBaseline.cs
@@ -1319,9 +1319,23 @@ namespace Baseline
 			X = x;
 			Y = y;
 		}
+		private static Boolean FoxitSettingInfo = true;
+
+		/// <summary>
+		/// MoveIt() moves the window containing the PDF viewer to the right so the two pdf viewer windows will not overlap.
+		/// </summary>
 		public void MoveIt()
 		{
-			SetWindowPos(Process.MainWindowHandle, 0, X, Y, 200, 400, SWP_NOSIZE | SWP_SHOWWINDOW | SWP_NOZORDER);
+			try
+			{
+				SetWindowPos(Process.MainWindowHandle, 0, X, Y, 200, 400, SWP_NOSIZE | SWP_SHOWWINDOW | SWP_NOZORDER);
+			}
+			catch // B2018-147 bring up message to inform user of the setting that will create separate windows of the pdf viewer
+			{
+				if (FoxitSettingInfo)
+					MessageBox.Show("If you want to see the documents in separate windows,\nyou need to set Foxit to allow multiple instances. \nSelect File | preferences | Documents\n Check the Allow Multiple Instances", "Foxit Settings");
+				FoxitSettingInfo = false;
+			}
 		}
 	}
 	public class ProcessLocationQueue: Queue<ProcessLocation>