Something about the site seems to have changed in the past week or so. Or possibly something on my end changed. I visit both at work (shhhh don't tell anyone) using a Windows 7 desktop, and at home using an old Macbook Pro. With both, when I switch to full screen video I get a popup that says "Vimeo is now Full screen". You have to say allow before it will go full screen.
That's just a minor annoyance, but it's new. My real problem is that on my macbook, when I go full screen the video gets very jerky, and close to useless. I've tried multiple times, over several days, and it's repeatable everytime. I'm pretty sure it is not the bandwidth at home, since everything else I do there behaves normally still.
I don't have the problem with Windows. But that could be that I have alot more bandwidth to work with.
Any other Mac user seeing this?