Pictures Won't Import?

I've been trying for nearly three hours now to import the pictures from my iPhone 4S to my Toshiba laptop running Windows 7. I've tried every way that I can think of, including right clicking on my phone in My Computer and importing photos. Every time without fail, no matter what order my pictures are in, it hangs up after the fifth picture. It won't process any further. I would really like to get my photos off my phone, but nothing is working! Am I missing something? I usually have no problem at all moving pictures.