trouble in paradise!

I have had trouble for the last 2 evenings now loading a picture into Blogger, Daily Painters web-site and now my emails. I've tried re-starting my computer - which is all I can do - once I try to load a picture, my computer freezes up & I can't do anything. I'll try to get through to the apple -care support tomorrow (if I can't get help off the website tonight!) grrr... this is way-past getting to me!