I'm guessing you're using OSX and not Safari on Windows. I tested Safari on OSX with our test account and didn't run into the same problem. The prompt that you see, is it a web page, or does it look more like a system-generated dialog?

I was able to recreate the problem using Safari for Windows. Something is non-standard or buggy with the release of Safari for windows that I'm using (the latest from Apple), and that seems to be the root of the problem. Safari appears to be neglecting to send the proper request instructions with the image requests, and the website doesn't know you are logged in for the images.

I put a work around in place to keep the annoyance to a minimum - you shouldn't get any more prompts on the pages with thumbnails, but it may still prompt you when you view a large image or movie. Be sure to check the "remember" checkbox, and you shouldn't have to keep re-entering it.

Please let me know if you are not on Windows, as I couldn't re-create in OSX.

I am on OS X.

it looks like a system generated dialog

The message is.

"If you want to see this page you need to login on area
”Realm ID=116656010]” på www.lynnblakegolf.com:80."

Even after loggin in and the clip is about to start, a new popup comes with the same text.

I'll keep looking into the issue and see if I can find a better workaround on our end. If it's driving you crazy in the mean time, you can go to http://www.getfirefox.com and download firefox for OSX. It does not have the same problem.