I keep trying to visit the MYBB site but it doesn't work, it just says the usual page cannot be found yet i try with a proxy and it works fine?
It sometimes does it with me also.. =/
Yeah it's strange. It is working for me now, maybe it is a google chrome problem as i was using my Chrome on my Vista PC but i am 99% sure it has done this to me using Firefox under Linux.
Yeah it happens to me too, goes down for a good half hour for me, but it doesn't appear to be a global problem as there's new posts when it works again.
Probably something up with your DNS not resolving. Try flushing your DNS cache when this happens (not sure how to do this in Linux - Google helps).
You can also try using something like OpenDNS if this happens often.