What's wrong with my sig?

Last night & earlier tonight my 2 signature pictures were coming up fine as usual. I leave for awhile, come back & they are replaced by the red "x". But the 3rd picture is fine.. I've noticed other sigs like this as well. I haven't changed any settings, so am I being stupid on this black box again, or is it a temporary problem with the site?
Any comments or suggestions?
Thanks!

sounds like photobucket is having "issues" again, lol! Then again, I noticed that kittylover4ever was wonky this morning, and she hosts with mustangmods like I do......mine was fine at the time, and hers wasn't.


ETA, when I pasted the addy for the first pic into my browser, it told me that the page could not be found.

That's weird, all 3 of them are from photobucket..

I love the picture in your siggie that I see right now! Gorgeous

Sometimes a hosting site has issues and those reflect in the image not being properly linked here. Your photos are back now.