Sorry to interrupt the normal optics discussion, but our new sponsor, BC College of Optics, says that he cannot see the BCCO banner in the upper right hand corner of the page.

Could you please take a look and then post in this thread saying if you see the banner or not and which browser and operating system you used?

Thanks everyone!

My experience: The banner shows with the latest versions of Chrome, Safari and Firefox on MacOS, and with Internet Explorer on Windows 7.