Picture Pasting Problem

I've run into a problem. I have been copying (from the web, paint and other tabs in excel) and pasting pictures into excel. At one point, I right clicked on a photo on the internet and when I went to paste it into excel, it gave me the last picture I copied. No matter how many times I copied it, it wouldn't paste it, it would only paste the last picture.

When I click to view my clip board, the correct photo is there. When I click on the photo I want, it STILL gives me the old one. Even when I clear the clipboard and copy and paste the new picture it STILL gives me the old one, and ITS NO LONGER ON THE CLIPBOARD!

Can anyone help me on this? If I close out excel and reopen it, it will work correctly for the first picture. Then, that is the only picture it will paste no matter how many other pictures I copy.

Anything?..........