diff --git a/admin/templates/default/categories.index.xet b/admin/templates/default/categories.index.xet
index 36f30dc1c4..7312447376 100644
--- a/admin/templates/default/categories.index.xet
+++ b/admin/templates/default/categories.index.xet
@@ -4,7 +4,7 @@
 <overlay>
 	<template id="admin.categories.index.right" template="" lang="" group="0" version="1.9.001">
 		<hbox>
-			<buttononly align="right" label="Add" id="add" onclick="window.open('$cont[add_link]','_blank','dependent=yes,width=600,height=380,scrollbars=yes,status=yes'); return false;"/>
+			<buttononly align="right" id="add" onclick="window.open('$cont[add_link]','_blank','dependent=yes,width=600,height=380,scrollbars=yes,status=yes'); return false;"/>
 		</hbox>
 	</template>
 	<template id="admin.categories.index.rows" template="" lang="" group="0" version="1.9.002">
diff --git a/etemplate/js/et2_dataview.js b/etemplate/js/et2_dataview.js
index bd5353c395..af6dadf0d4 100644
--- a/etemplate/js/et2_dataview.js
+++ b/etemplate/js/et2_dataview.js
@@ -258,6 +258,24 @@ var et2_dataview = Class.extend({
 			this.columnMgr = null;
 		}
 
+		// Remove dynamic CSS,
+		for (var i = 0; i < this.columns.length; i++)
+		{
+			if(this.columns[i].tdClass)
+			{
+				this.egw.css('.'+this.columns[i].tdClass);
+			}
+			if(this.columns[i].divClass)
+			{
+				this.egw.css('.'+this.columns[i].divClass);
+				this.egw.css(".egwGridView_outer ." + this.columns[i].divClass);
+				this.egw.css(".egwGridView_grid ." + this.columns[i].divClass);
+			}
+		}
+		this.egw.css(".egwGridView_grid ." + this.uniqueId + "_div_fullRow");
+		this.egw.css(".egwGridView_outer ." + this.uniqueId + "_td_fullRow");
+		this.egw.css(".egwGridView_outer ." + this.uniqueId + "_spacer_fullRow");
+		
 		// Reset the headerColumns array and empty the table row
 		this.columnNodes = [];
 		this.columns = [];
diff --git a/phpgwapi/js/jsapi/egw_core.js b/phpgwapi/js/jsapi/egw_core.js
index 12b921f692..344ee25b7b 100644
--- a/phpgwapi/js/jsapi/egw_core.js
+++ b/phpgwapi/js/jsapi/egw_core.js
@@ -449,7 +449,7 @@
 			{
 				case 0:
 					// Return the global instance
-					return egw;
+					return instances['~global~'][0]['instance'];
 
 				case 1:
 					if (typeof arguments[0] === 'string')
diff --git a/phpgwapi/js/jsapi/egw_css.js b/phpgwapi/js/jsapi/egw_css.js
index 590f8eb6c0..5dce92499a 100644
--- a/phpgwapi/js/jsapi/egw_css.js
+++ b/phpgwapi/js/jsapi/egw_css.js
@@ -49,9 +49,9 @@ egw.extend('css', egw.MODULE_WND_LOCAL, function(_app, _wnd) {
 		 */
 		css: function(_selector, _rule) {
 			// Set the current index to the maximum index
-			var index = selectorCount;
+			var index = sheet ? Math.min(selectorCount, sheet.cssRules.length) : 0;
 
-			if (!sheet)
+			if (!sheet || !sheet.ownerNode || sheet.ownerNode.ownerDocument !== _wnd.document)
 			{
 				// Generate a style tag, which will be used to hold the newly generated css
 				// rules.
@@ -60,6 +60,9 @@ egw.extend('css', egw.MODULE_WND_LOCAL, function(_app, _wnd) {
 
 				// Obtain the reference to the styleSheet object of the generated style tag
 				sheet = style.sheet ? style.sheet : style.styleSheet;
+
+				selectorCount = 0;
+				selectors = {};
 			}
 
 			// Remove any existing rule first, of no rule exists for the
@@ -67,13 +70,16 @@ egw.extend('css', egw.MODULE_WND_LOCAL, function(_app, _wnd) {
 			{
 				// Store the old index
 				index = selectors[_selector];
-				if (typeof sheet.removeRule !== "undefined")
+				if(index < sheet.cssRules.length)
 				{
-					sheet.removeRule(index);
-				}
-				else
-				{
-					sheet.deleteRule(index);
+					if (typeof sheet.removeRule !== "undefined")
+					{
+						sheet.removeRule(index);
+					}
+					else
+					{
+						sheet.deleteRule(index);
+					}
 				}
 
 				delete (selectors[_selector]);