Posting pics problems(using the image tab)?

[bluetang]

Lately I havent been able to post pics in my post. I right click the pic, copy the web adress of the pic, paste it to the post, highlight the adress and hit the image tab and it doesnt work. Ive used this method more times than I can count and for the last couple of weeks it hasnt worked. Is there something wrong with the site or is it me?