There is nothing in this forum which would stop your picture being shown, and I doubt that there's anything wrong with your computer. My guess is that it could be down to one of two things. Either:
a) Your computer has an old (cached) version of the page without the image. If this is so you need to clear your browser's cache.
b) Internet connection speeds are slow (either your own connection to the net, or the network between you and our server). If this is the case there's not much anyone can do.
Hope that helps.