I am having trouble with uploading a photo?

[Kellie]

I have tried to upload a photo from my computer into my profile. Everytime I go to the profile page and click "change picture", I get a black box containing the facebook icon and another icon that reads "no photo". The no photo icon seems to be a grey image of the exclamation point that I am trying to change in my profile. I have followed other instructions to make my profile public but that does not seem to change anything. I can't tell if it is a system glitch but 99% of the times it is user error. So I'll take the blame on this and admit that I don't know what I am doing. Can anyone help alk me through this?