Photo posting problems in IE9

I have posted several hunderd photos on this forum since joining, always the same method, usually without any problems, other than chronic slowness. Then, over the last few days, I have been completely unable to load any photos at all to any thread, even if I try and start a new thread. I browse & find a photo, click insert & it never happens. Usually I get a message after a few minutes saying that Internet Explorer has stopped working or the whole laptop just freezes. I did wonder about size of image but on experimenting with images but large & small the same thing happened. No-one else seems to have any problems posting photos at the moment so what is going on ? Any help would be welcome.