What's been up with the facebook chat lately?

For a week now its been so screwy. First it started with the sound not working for the pop out chat when someone messages you and you are havign a conversation it doesn't make the bink sound. It still doesn't either. Then it wasn't updating who was on and who was off. There were people in the chat that were on and it never updated. I have to reload the page. Thats been going on for at least 4 or 5 days. Then the past few days when you sign on fb the left side would have picture sof people who are on the chat but now half the time that comes up missing until you click the tab at the bottom. Then when you click the tab you have to click it a few times before it extends up so you see who is on. Then the pics on the left side pop up into view. Can't they ever fix their chat issues?