adsense errors

Ah, I'm so depressing.... today, I tried to put google ads in this blog.. It's okay for the first time with 468x15 horisontal row between post. But I don't like it.. It doesn't look good for me, so I manage to change it. Next thing what happened is I can't change it !

"Please correct errors on form"

That sentence appeared... I've tried so many times, restart my computer, log out and log in again. Nothing works.. When I tried to change it to banner ads, it shows error

bX-slbtls

I dig in blogger help in google and seems like many people got this problem also.. Phew.. hope google will solve this problem ASAP.. Anybody know how t fix this problem??

I think this problem occured because Blogger implemented new style for Posting