Lost Faith in Rotten Tomatoes

I just visited Rotten Tomatoes since we're considering watching "Kung Fu Panda," and I saw that "Indiana Jones and the Kingdom of the Crystal Skull" got a 77%. Excuse me? Did all those critics watch the same movie I did? I loved the first one and was disappointed in the second and third Indy films. The latest was similar to "Indiana Jones and the Last Crusade." Too much of a stretch and too hokey for me. This is the first in a very long time that Rotten Tomatoes has let me down.