thanks,
yeah... I noticed the same thing, it happened because of the angle I took the shot. I find it hard to fix, it's not just about rotating a little because the bottom will move as well. The only solution I found would be cloning, but it's so full of detail that I don't know how will it work out... any idea?
I like to use Helicon for these corrections. It is good for almost all corrections including color...
Free version http://www.heliconsoft.com/heliconfilter.html
Pro version is not expensive