Remaining known issue: 
Some people are unable to access chat, though they see others in chat who can access fine.
Should this happen to you, please go here:
http://www.macromedia.com.../settings_manager07.html

You will see Website Storage Settings panel in a box towards the centre of the page.
Delete the sites out of that window.

It's just the same as when something goes wrong and you need to clear your (browser) cache to get a good fresh copy of whatever. With Flash, things often get stuck either in an outdated version or a broken one. The only solution is to delete your flash cache.

Personally, I run without one. i.e. I permanently have no sites listed because I store nothing.

There is absolutely no harm in deleting them all. Someone on dial-up may choose to be selective about their deletion but that would be a matter of their choice with bandwidth being at a premium.

Just go in and delete all sites. No need to close browser or reboot. Just go and try.

Andrew, we have a couple of members who are having intermittent problems accessing our chat ~ some can enter if they try to enter a number of times ~ some get hung up at the 'loading' screen ~ the strange part, at least to me, is that the problem is intermittent ~ I will suggest again for them to clear their cookies ~ but is there any further advice you can offer? ~ thanks ~

Not really. Would this intermittency maybe be at a peak time?

One thing I can say though is I have my flash cache set to zero and have done for years. Barring any system errors, I haven't had any trouble, including when something has been changed.

In the Global Settings Manager: 
http://www.macromedia.com/support/documentation/en/flashplayer/help/settings_manager03.html#117498 
I have the slider set to None and "Never ask again" checked. The other two boxes are unchecked.

My theory is that if nothing is cached, nothing can harm me, I always have an up to date version and I never have to clear it. Prior to me setting it to zero - which was security prompted - I used to run a very small cache, which would virtually self-flush.

My suspicion though is that it relates to the retrieval of account detail and the login process. It *might* just be helpful if they ensure they are active on yuku before loading the chat. By that, I mean generally visiting forums and topics while logged-in. This is purely guesswork on my behalf because I haven't a clue how the system works. 

Thanks, Andrew ~ they are all active posters, so I don't think your 'account detail/login process' concern applies here ~ I did suggest they make sure their Adobe app updates are current ~ and, after poking around in this thread, I c/p'd the yuku support update on clearing the flash cache and your following reassurance that that will not create new problems ~ I'm going to c/p your most recent reassuring reply as well ~ thanks again ~

Hi there Sooz,

We are experiencing problems across the network. The system has been taken down for a fix, we hope to have it back up and running shortly. Things were real slow earlier, and the only way to fix is to take the servers down.

Please accept our apologies for this downtime. I know it's been a rough ride, this server switch.

Yuku seems to have decided to re-organize a group's display preferences.  Where once you could find twenty topics per page, they have now reduced them to ten.

The 502 Bad Gateway error displays inside the Internet browser window, just as web pages do.

Cause

The 502 Bad Gateway error is an HTTP status code that means that one server received an invalid response from another server that it was accessing while attempting to load the web page or fill another request by the browser.

Resolution

The 502 Bad Gateway error is usually a network error between servers on the Internet, meaning the problem is not with your PC or Internet connection.