For some reason, I'm unable to start a match. Also, when I go into the options, the back button in the upper left corner doesn't work. Is it just my computer, or are other people having this problem?

When you say you're unable to start a match, do you mean an online or offline one?

Also, be sure that nothing is interfering with the game because when buttons become unresponsive, that's usually the case.

Are you trying to hit start with your mouse? Try pressing your friendly little Space button instead.

As for the 2nd problem, reload the page when it happens once, if the problem persists, press your "o" button, that should work.

It also might be helpful if we know which browser you are using. If everything I've said fails, play another flash game that requires both mouse and button use, if it doesn't work there, then something is wrong with your computer and/or browser. If everything anyone says in this thread fails to work, then you'll just have to wait for Beta to launch or download the game and try it there.

this is why the ready to fight bar should have stayed the way it was before 9a tbh, i see new players trying to click the button all the damn time

That mistake will be avoided in future versions, since they've finally added "Click Space" in addition to the Ready to Fight bar.

I'm playing on Chrome. Also, it seems to be functional now.