Render Fix

$exists=0;

 for ($item in `getPanel -scriptType "renderWindowPanel"`) {

        if ( $item == "renderView" ) {

                print "renderView exists.\n";

                $exists=1;

        }

 }

 if ( $exists == 0 ) {

        for ($item in `getPanel -scriptType "renderWindowPanel"`) {

                //print ( $item + "\n");

                if ( $item == "renderWindowPanel1" ) {

                deleteUI renderWindowPanel1;

                $renderPanel = `scriptedPanel -type "renderWindowPanel" -unParent renderView`;

                scriptedPanel -e -label `interToUI $renderPanel` $renderPanel;

                }

        }

 }

Copy and paste the script above into the Script Editor-  Then FILE--> SAVE SCRIPT TO SHELF