[Plugin: NextGEN Gallery] NextGen Cooliris Gallery Blank Screen

Install NextGen Cooliris Gallery and want to use the PHP code in my page template but when I open the page in my browser it is blank, no errors just blank. The code I am using is the following:

<?php if function_exists(‘show_nextgen_cooliris’) echo show_nextgen_cooliris (270,201, 1, ‘white’, ‘gallery’, 1); ?>

Any ideas????

Thanks
Ed

http://ww.wp.xz.cn/extend/plugins/nextgen-gallery/