I very carefully followed the directions Customization - Templates - Create to create my custom template. After uploading the files and going as directed to Tools>Template Selection to choose my custom template, I found that the Template Selection page is coming up blank - no error message, just blank. I can view other pages under Tools and Confiuration. I viewed this page yesterday before uploading the custom template today. I restarted my computer, cleared the cache, tried both IE and Firefox browsers - still blank.

Any ideas?