I shot a wedding last night and I am having problems transferring images. Recently I have gone from 1 gig to 3 gig ram and I have also had to reset my settings on both my 40ds. Everything has gone well to this point bur last night went to transfer images which usually takes about 10 to 20 minutes (never really timed it) for about 500 images, to maybe 1 image every 5 minutes. I used both cameras with the same results. Anyone have any suggestions?