You Tube Videos.

Hi to you all,
Small question, have been trying to watch a few Videos, & seeing them OK, but can not get Full Screen.
So is it me or does You Tube Have Problems.
Does not seem to matter whether they are Woodie or Something else, but no full screen.
It does have a small window saying something about it, can't remember the wording.

Just checked. I have full screen ok. Tried a couple of videos. All ok

I have had the same problem just lately, there is a red x over the full screen button from memory.