diff -r f9a49224cfc5 org.adempiere.base/src/org/compiere/model/GridFieldVO.java
--- a/org.adempiere.base/src/org/compiere/model/GridFieldVO.java	Fri May 08 12:35:48 2015 -0500
+++ b/org.adempiere.base/src/org/compiere/model/GridFieldVO.java	Wed May 13 11:12:55 2015 -0500
@@ -683,7 +683,7 @@
 	public void loadLookupInfo() {
 		try
 		{
-			lookupInfo = MLookupFactory.getLookupInfo (ctx, WindowNo, AD_Column_ID, displayType,
+			lookupInfo = MLookupFactory.getLookupInfo (ctx, WindowNo, TabNo, AD_Column_ID, displayType,
 				Env.getLanguage(ctx), ColumnName, AD_Reference_Value_ID,
 				IsParent, ValidationCode);
 			if (lookupInfo == null)
diff -r f9a49224cfc5 org.adempiere.base/src/org/compiere/model/MLookupFactory.java
--- a/org.adempiere.base/src/org/compiere/model/MLookupFactory.java	Fri May 08 12:35:48 2015 -0500
+++ b/org.adempiere.base/src/org/compiere/model/MLookupFactory.java	Wed May 13 11:12:55 2015 -0500
@@ -148,6 +148,17 @@
 	}   //  get


+	static public MLookupInfo getLookupInfo (Properties ctx, int WindowNo,
+			int Column_ID, int AD_Reference_ID,
+			Language language, String ColumnName, int AD_Reference_Value_ID,
+			boolean IsParent, String ValidationCode)
+	{
+		return getLookupInfo (ctx, WindowNo, 0,
+				Column_ID, AD_Reference_ID,
+				language, ColumnName, AD_Reference_Value_ID,
+				IsParent, ValidationCode);
+	}
+
 	/**************************************************************************
 	 *  Get Information for Lookups based on Column_ID for Table Columns or Process Parameters.
 	 *
@@ -166,7 +177,7 @@
 	 * 	@param ValidationCode optional SQL validation
 	 *  @return lookup info structure
 	 */
-	static public MLookupInfo getLookupInfo (Properties ctx, int WindowNo,
+	static public MLookupInfo getLookupInfo (Properties ctx, int WindowNo, int TabNo,
 		int Column_ID, int AD_Reference_ID,
 		Language language, String ColumnName, int AD_Reference_Value_ID,
 		boolean IsParent, String ValidationCode)
@@ -199,6 +210,7 @@
 		//	remaining values
 		info.ctx = ctx;
 		info.WindowNo = WindowNo;
+		info.TabNo = TabNo;
 		info.Column_ID = Column_ID;
 		info.DisplayType = AD_Reference_ID;
 		info.AD_Reference_Value_ID = AD_Reference_Value_ID;
diff -r f9a49224cfc5 org.adempiere.base/src/org/compiere/model/MLookupInfo.java
--- a/org.adempiere.base/src/org/compiere/model/MLookupInfo.java	Fri May 08 12:35:48 2015 -0500
+++ b/org.adempiere.base/src/org/compiere/model/MLookupInfo.java	Wed May 13 11:12:55 2015 -0500
@@ -190,6 +190,8 @@
 	public Properties   ctx = null;
 	/** WindowNo		*/
 	public int          WindowNo;
+	/** TabNo		*/
+	public int          TabNo;

 	/**	AD_Column_Info or AD_Process_Para	*/
 	public int          Column_ID;