fixed exception, fixed armor label obscuring the items

apps/openmw/mwgui/tooltips.cpp

@@ -177,6 +177,7 @@ void ToolTips::onFrame(float frameDuration)
                 MWWorld::Ptr item = MWBase::Environment::get().getWorld ()->getCharacterPreviewItemSelected (realX, realY);
 
                 mFocusObject = item;
+                if (!mFocusObject.isEmpty ())
                     tooltipSize = getToolTipViaPtr(false);
             }
             else if (type == "Spell")

files/mygui/openmw_inventory_window.layout

@@ -18,6 +18,7 @@
                 </Widget>
                 <Widget type="TextBox" skin="ProgressText" position="0 150 212 24" align="HCenter Bottom" name="ArmorRating">
                     <Property key="Caption" value="Armor Rating"/>
+                    <Property key="NeedMouse" value="false"/>
                 </Widget>
             </Widget>