Hmmm...I'd agree with the IBM.
When I came out the cinema, the most criticism I heard was about the green issue ... certainly who I was with at the time thought that. I took it onboard but didn't think much of it - I mentioned this in a previous Wall E thread:
Wall E
I think it was great. I gave it four and a half stars, but that was because I was expecting to be wow'ed by the visual animation and I wasn't. It wasn't bad, but I certainly don't think at any point, given a projected progression Pixar should be capable of by now, it had much wow factor.
It's one of the few movies I would probably go and watch again....except I kind of need to save my money for the Dark Knight!