Have you tried using a different browser? Several days ago several of us had a variety of different problems with Firefox since they had updated some of its security features. It wouldn't let some members into the forum and I had a hard time using PayPal, Angie's List and a few other sites.
Then again, photobucket has been known to be finicky at times. I haven't had much trouble with it, but others have had all kinds of mishaps.