Added Try/Catch to keep the code from bombing on an invalid RO

PROMS/Volian.Controls.Library/DisplayText.cs

@@ -160,7 +160,16 @@ namespace Volian.Controls.Library
 		{
 			// Adjust RO display
 			if (ROsShouldBeAdjusted)
+			{
+				try // Added try/catch because an unresolved RO Link was causing a failure.
+				{
 					text = DoROAdjustments(text);
+				}
+				catch (Exception ex)
+				{
+					_MyLog.Error("DisplayText.CreateRTF Error doing DoROAdjustments", ex);
+				}
+			}
 			// if in print mode, view mode, or non-active richtextbox do replace words.  Only if in 
 			// actual edit mode are replace words left as is.
 			if (wordsShouldBeReplaced)