i just bought a used 20d, and it didn't come with any software. i checked canon's website, and there are several downloads, and i don't know which ones i need. there are images on my cf card, but when i connect the camera to my computer, it's saying there are no images on my camera. i don't know if this has anything to do with the fact that i shot raw. i know this is a newbie question, but if someone can help, i'd really appreciate it. i am so in the dark!