Has anyone else had this happen?
I've made a slideshow, tested it fine, uploaded it. The seem to upload to my site ok. So then when I try and test it, I get a random image error. So I'll re-upload that one file, and then another will error out. I racked my brain thinking something was corrupted and tried it in safari, and it worked fine. So I cleared my cookies and stuff in firefox and then it works.. wth? weird stuff.

Can anyone explain this?

yes...i've suffered with that problem for a long time. it would work for some users and not for others and it was driving me crazy having to answer all these emails from people that couldn't see it, while others could. anyway, in my case at least (and the symptoms sound identical) it was because i had "hotlink protection" enable on my web server, i turned that off and haven't had any probelms since!

-dave