Is anyone else having this problem.  I normally fight Jetsam Ace and get my 15 good prizes for the day, then I go and get my other prizes from another challenger.  I do it that way because I fight Jetsam Ace on the lowest setting, so I only get $50 np/fight.  Well, I did that yesterday.  Today I went to do my fighting and for some reason it won't let me pick my challenger and I am stuck fighting in the UGGA dome and getting its stupid crap prizes.  Is there a way to get out of the dome?

Yes, it happened to me earlier. I was trying to hit new battle and ended up being forced to repeatedly fight the same challenger. I tried hitting exit instead and then I was back out. Hopefully this works for you too.

You could also try withdrawing from the fight. Visit the status page here: http://www.neopets.com/dome/status.phtml and click Withdraw. It will count as a loss in your records but it should release you from whatever fight you're stuck in so you can choose a different opponent.