See, I was there, in Moncton, and I didnt think the crowd response was lacklustre at all.... And Bono's voice sounded so good singing that song. I have a bootleg from Moncton, but the sound quality isnt the best, and I'd love to have a good version of 40 from there.
Also, when 40 was snippeted at the end of Bad in Pittsburgh, it got a pretty good response too. People were singing it as they left the stage.