I have the same problem only much worse. My cat stepped on it... I've only had it for a few weeks.
From what I've read on the iRex forum, I'm not expecting much. There are many other people with the same type of problems, it seems the only option is to pay $400-500 to get the screen replaced. I don't think I'll be doing that...
I'd advise returning it if you can. It seems way to fragile. Hopefully they'll get some competition in the coming months.